日本成人片在线_久久免费精品视频_国产午夜精品久久久久久免费视_校花撩起jk露出白色内裤国产精品_av影片免费在线观看_国产小视频在线看_最新av免费在线观看_99久久99久久精品国产片_欧美成人猛片aaaaaaa_蜜桃免费网站一区二区三区

精英家教網 > 高中英語 > 題目詳情
“Get your hands off me, I have been stolen,” the laptop, a portable(便攜式的)computer, shouted. That is a new solution to laptop computer theft: a program that lets owners give their property a voice when it has been taken.
The program allows users to display alerts(警報)on the missing computer’s screen and even to set a spoken message. Tracking software for stolen laptops has been on the market for some time, but this is thought to be the first that allows owners to give the thief a piece of their mind.
Owners must report their laptop missing by visiting to a website, which sends a message to the model: a red and yellow “lost or stolen” sign appears on its screen when it is started. Under the latest version(版本) of the software, users can also send a spoken message.
The message can be set to reappear every 30 seconds, no matter how many times the thief closes it. “One customer sent a message saying, ‘You are being tracked. I am right at your door’,” said Carrie Hafeman, chief executive (主管) of the company which produces the program, Retriever.
In the latest version, people can add a spoken message. For example, the laptop’s speakers will say: “Help, this laptop is reported lost or stolen. If you are not my owner, please report me now.”
The Retriever software package(軟件包), which costs $29.95 (£21) but has a free trial period, has the functions of many security software programs. Owners can remotely switch to an alternative password if they fear that the thief has also got hold of the access details.
If a thief accesses the internet with the stolen laptop, Retriever will collect information on the internet service provider in use, so that the police can be alerted to its location.
Thousands of laptops are stolen every year from homes and offices, but with the use of laptops increasing, the number stolen while their owners are out and about has been rising sharply.
Other security software allows users to erase(刪除)data remotely or lock down the computer.
小題1:The expression “to give the thief a piece of their mind” can be understood as “_______”.
A.to give the thief an alert mind
B.to express the owners’ anger to the thief
C.to remind the thief of his conscience
D.to make the thief give up his mind
小題2:Different from other security software, Retriever can ______.
A.record the stealing process
B.help recognize the lost laptop
C.lock down the computer remotely
D.send a spoken message
小題3:One function of the program is that it allows the owner to ______ at a distance.
A.change some access details for switching on the laptop
B.turn on the laptop by using the original password
C.operate the laptop by means of an alternative password
D.erase the information kept in the stolen laptop
小題4:Which of the following can best summarize the main idea of the passage?
A.With no Retriever, thousands of laptops are stolen every year.
B.A new software provides a means to reduce laptop theft.
C.Retriever has helped to find thieves and lost computers.
D.A new program offers a communication platform with the thief.

小題1:B
小題2:D
小題3:A
小題4:B

試題分析:文章是一篇說明文。主要介紹了一種新型電腦防盜軟件,這種軟件不僅能向竊賊發送文字和語音信息,還能跟蹤、遠程改變密碼以及收集網絡信息,來幫助警方發現被盜電腦的位置,以減少手提電腦失竊事件的發生頻率。
小題1:細節理解題。由第一、二段可知,這種新型軟件的新功能是可以向手提電腦偷竊者發出語音信息,如:Get your hands off me, I have been stolen.。這顯然是表達電腦主人對竊賊的憤怒情緒的,故正確答案為B。其他同類軟件具有向竊賊發出警告文字信息的功能,故A項和題干不能完全吻合,可排除。故選B。
小題2:細節理解題。根據第二段“Tracking software for stolen laptops has been on the market for some time, but this is thought to be the first that allows owners to give the thief a piece of their mind.”可知,這種軟件可以表達電腦主人的心情、情緒,也就是發出語音信息。故選D。
小題3: 細節理解題。根據第六段“Owners can remotely switch to an alternative password if they fear that the thief has also got hold of the access details.”可知,A項說法正確;B、C是對本句的誤解。根據第九段可知,清除被盜電腦信息并非這種軟件的功能,可排除D。故選A。
小題4:概括主旨大意題。本文介紹了一種新型電腦防盜軟件,這種軟件不僅能向竊賊發送文字和語音信息,還能跟蹤、遠程改變密碼以及收集網絡信息,來幫助警方發現被盜電腦的位置,以減少手提電腦的失竊事件的發生。B項較全面的概括了這一主題,為正確答案。其余幾項都比較片面。故選B。
練習冊系列答案
相關習題

科目:高中英語 來源:不詳 題型:閱讀理解

Does your child struggle in school? Is he or she afraid of reading out loud, writing an essay, or working out a math problem? While every kid has trouble with homework from time to time, if a certain area of learning keeps going wrong, it might show a learning disorder. Learning disorders, or learning disabilities, are a general term for a wide variety of learning problems.
A learning disability is not a problem with IQ or motivation (動機). Kids with learning disabilities aren’t lazy or slow. In fact, most are just as smart as everyone else. Their brains are just wired (裝電線) differently. Simply put, children and adults with learning disabilities see, hear, and understand things differently. This difference affects how they receive and process (處理) information. This can lead to trouble in learning new information and skills, and putting them to use.
It can be tough to face the possibility that your child has a learning disorder. No parents want to see their children suffer. You may wonder what it could mean for your child’s future, or worry about how your kid will make it through school. But the important thing to remember is that most kids with learning disabilities are just as smart as everyone else. They just need to be taught in ways that suit their unique learning styles.
It’s not always easy to tell whether a child has learning disabilities, for learning disabilities look very different from one child to another. One child may struggle with reading and spelling, while another loves books but can’t understand math. Still another child may have difficulty understanding what others are saying or communicating loud. However, some warning signs are more common than others at different ages. If you’re aware of what they are, you’ll be able to catch a learning disorder early and quickly and take steps to help your child as quickly as possible.
小題1:From the passage, we can infer that_______.
A.students with learning disabilities look quite different from normal students
B.students with learning disabilities can’t do well in their studies
C.only few students with learning disabilities are as clever as normal students
D.it is quite possible for a students with learning disabilities to succeed in their studies
小題2:What is the main idea of the passage?
A.Learning about learning disabilities.
B.How to prevent learning disabilities.
C.Ways to identify learning disabilities.
D.Different learning disabilities.
小題3:What will be most probably discussed following the Paragraph 4?
A.Some ways which help parents teach their children with learning disabilities better.
B.Some suggestions on how to get along with their children with learning disabilities.
C.Some parents may have difficulties in helping their children with learning disabilities.
D.Some warning signs which show that a child may have learning disabilities.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Think about the different ways that people use the wind. You can use it to fly a kite or to sail a boat. Wind is one of our cleanest and richest power sources, as well as one of the oldest. Evidence shows that windmills(風車) began to be used in ancient Iran back in the seventh century BC. They were first introduced to Europe during the 1100s, when armies returned from the Middle East with knowledge of using wind power.
For many centuries, people used windmills to grind(碾碎) wheat into flour or pump water from deep underground. When electricity was discovered in the late 1800s, people living in remote areas began to use them to produce electricity. This allowed them to have electric lights and radios. However, by the 1940s when electricity was available to people in almost all areas of the United States, windmills were rarely used.
During the 1970s, people started becoming concerned about the pollution that is created when coal and gas are burned to produce electricity. People also realized that the supply of coal and gas would not last forever. Then, wind was rediscovered, though it means higher cost. Today, there is a global movement to supply more and more of our electricity through the use of wind.
小題1:From the text we know that windmills________.
A.were invented by European armies
B.have a history of more than 2,800 years
C.used to supply power to radio in remote areas
D.have rarely been used since electricity was discovered
小題2:What was a new use for wind power in the late 19th century?
A.Sailing a boat.
B.Producing electricity.
C.Grinding wheat into flour.
D.Pumping water from underground.
小題3:One of the reasons wind was rediscovered in the 1970s is that_______.
A.wind power is cleaner
B.it is one of the oldest power sources.
C.it was cheaper to create energy from wind
D.the supply of coal and gas failed to meet needs
小題4:What would the author probably discuss in the paragraph that follows?
A.The advantages of wind power.
B.The design of wind power plants.
C.The worldwide movement to save energy.
D.The global trend towards producing power from wind.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

A victim of climate change
A polar bear's dead body found on the Arctic island of Svalbard, the northernmost part of Norway, has shocked experts who say climate change may be to blame for the death. The starved polar bear in Norway was said to be in good bones by the time a group of explorers came across its body in July.
The bear is thought to have been heading north in a desperate search for sea ice that would allow it to hunt for seals."From his lying position in death, the bear appears to simply have starved to health in April when the Norwegian Polar Institute examined and labeled it. However, the animal was reduced to skin and bones and died where he dropped," polar bear expert Dr. Ian Stirling, a professor at the University of Alberta said, "He had external suggestion of any remaining fat, having been reduced to little more than skin and bone."
Stirling believes the bear starved to death as a result of a lack of sea ice which the animals use as a platform for hunting seals. That may also explain why the 16-year-old male bear was found about 155 miles north of where it was seen in April.
Arctic sea ice reached a record low in 2012, according to a report released this week by the National Oceanic and Atmospheric Administration that pointed to continued signs of climate change.
The International Union for Conservation of Nature currently classifies polar bears as vulnerable on its Red List of Threatened Species.
小題1:How did Stirling know the reason for the death of the polar bear?
A.By the food he ate.B.By doing further experiments.
C.By observing other polar bears.D.By his lying position in death.
小題2:The underlined word "vulnerable" probably means _____.
A.easily hurtB.difficult to hunt
C.dangerousD.amazing
小題3:What is the author's attitude to the incident?
A.Favorable.B.Uncaring.
C.Doubtful.D.Concerned.
小題4:Where does this text probably come from?
A.A novel.B.A guidebook.
C.A news report.D.An advertisement.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Do you know that a fast reader can get the ideas better than a slow reader can? Of course, you save time by reading fast, but this is not the main reason for fast reading. The main reason is that you understand better what you are reading when you read fast.
As your eyes move along the line of print, they make fixations(固定) or pauses. It is important that you see several words at a fixation. It is also important that your eyes leave a group of words quickly and move on to another group. The number of letters or words that you see at a fixation is called your eye span. Pay more attention to improving your rate of reading. With practice you can learn to read faster than you usually read.
The way in which you read always depends on what you are reading and for what purpose. You should know the different ways of reading so that you can apply whatever method that is necessary. Here are four ways of reading:
(1) Skimming is an important kind of reading. This method can be used when you wish to review something that you have forgotten. You can skim to get the main points.
(2) Rapid first reading and then rereading certain parts carefully is important. You may use this type of reading to study a science lesson or a history lesson.
(3) You need to do careful reading and rereading sometimes. This type of reading is necessary for making an intensive(精深的) study of your school subjects, solving maths problems or reading directions.
(4) Rapid reading is used when reading stories for enjoyment. You may also do rapid reading when reviewing material that you already know well.
小題1:The main reason for reading fast is that you can           what you are fast reading.
A.get the ideasB.save timeC.understand betterD.learn well
小題2:The way of reading always depends on           .
A.the method that you likeB.your reading material
C.your reading purposeD.both B and C
小題3:The underlined word “skimming” in the fourth paragraph means              .
A.reading very fast
B.looking carefully
C.reading only the main points
D.reading some parts of the material
小題4:Careful reading is an important kind of reading              .
A.when you read a story for enjoyment
B.when you go over a lesson that you have already known well
C.when you read the directions before using a camera which is expensive
D.when you wish to find a lost place that you have read

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Unknown to most Facebook users, the social network actually offers a lot of privacy controls and security features which can help you lock your account, so you can speak freely. If it’s used properly, you’ll never have to worry about whether you will have to “friend” your boss or your mom. You can friend anyone you want while staying comfortable in the knowledge that not everyone gets to see everything you post.
The problem with carrying out these privacy options is that they’re just too confusing for most non-tech clever people to handle. And often, most people don’t want to bother to take the time to learn. To simplify the process, we’re offering one easy step you can take today to help make your Facebook experience safer, more secure, and more private.
Just make “Friend Lists”. Yes, it will take some time, especially if you’re connected to a couple of hundred friends already. But this step, while not the quickest, is fairly simple. And it will be one of the most useful things you can do on Facebook.
Friend lists, as the name suggests, are lists for classifying your friends into various groups. The nice thing about this feature is that once you set these lists up, you won’t have to do it again. We suggest that you put your work colleagues and professional acquaintances into a friend list named “Work”, personal friends you’re not very close with into a list called “Acquaintances”, and people you’re related to into a list called “Family”. Those three main categories will separate out the groups of “friends” who you may want to hide some information from.
To create a friend list, click on “Friends” at the top of the Facebook homepage. In the left-hand column, click “Friends” again under the “Lists” section. Now you’ll see a button at the top that says “Create New List”. Click it. In the pop-up that appears, you can name your list and pick members. If you’ve ever shared an application with your friends, the process of doing this will be very familiar.
When you’ve finished making lists, you’ll be able to use them when selecting who can see what (or who can’t!) when configuring (配置) the security settings described below.
小題1:What function isn’t understood by most people on Facebook?
A.Surfing the Internet.
B.Setting safety protection.
C.Sharing personal information.
D.Making foreign friends.
小題2:What can we learn about Facebook according to the text?
A.Its process of privacy-setting is too complex.
B.It displays everything people post.
C.It lacks privacy controls and security features.
D.Its post is designed for technical people.
小題3:What advantage can we get from making friend lists?
A.We can avoid our bosses adding us as friends.
B.We can share applications with friends.
C.We can separate acquaintances from family.
D.We can hide different information from different friends.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

In the late 1970’s,many people in North America turned their attention to environmental problems ,and new steel — and — glass skyscrapers were widely criticized. Some ecologists (生態學家)pointed out that a number of tall buildings in a city often overburden public transportation.
Skyscrapers are also lavish consumers of electric power and water. In just one recent year, the addition of 17 million square feet of skyscraper office space in New York City itself has already raised the top daily demand for electricity by 120, 000 kw — enough to supply the entire city of Albany in New York area for a single day.
Glass—walled skyscrapers can also be especially wasteful. The heat loss ,or gain, through a wall of half 一 inch plate glass is more than ten times that through a typical ordinary wall filled with bricks or board. In order to decrease the pressure on heating and air — conditioning equipment, builders of skyscrapers have begun to use double—layered glass ,and reflective glasses coated with silver or gold mirror films that could reduce glare (強光)as well as heat gain. However, mirror — walled skyscrapers may raise the temperature of the surrounding air and affect neighboring buildings as well.
Skyscrapers put a severe pressure on a city's sanitation (衛生)facilities, too. If fully occupied, the towers just within the central area of New York would alone produce 2. 25 million gallons of waste water each year^—as much as the city size of Stanford, Connecticut, which has a population of more than 109,000.
小題1:The underlined phrase“ lavish consumers ”in the 2nd paragraph probably means ____
A.trash producersB.great spendersC.pressure makersD.poor customers
小題2:Glass walls of skyscrapers are specially mentioned in order to _____.
A.show how skyscrapers manage to lessen their pressure
B.explain why skyscrapers can control its air conditions
C.describe further how wasteful skyscrapers could be
D.present the stability of skyscrapers in modern buildings
小題3:From the last paragraph we can learn that _____.
A.central New York skyscrapers are a large waste water producer
B.the central area of New York is as large as the city of Stanford
C.more than 109,000 people live in the skyscrapers in New York
D.New York produces 2. 25 million gallons of waste water each year
小題4:When the writer talks about skyscrapers ,his tone sounds _____
A.positiveB.doubtfulC.gratefulD.negative

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

People who multitask all the time may be the worst at doing two things at once, a new research suggests. The findings, based on performances and self-evaluation by about 275 college students, indicate that many people multitask not out of a desire to increase productivity, but because they are easily distracted and can’t focus on one activity. And “those people turn out to be the worst at handling different things,” said David Sanbonmatsu, a psychologist at the University of Utah.
Sanbonmatsu and his colleagues gave the students a set of tests and asked them to report how often they multitasked, how good they thought they were at it, and how sensation-seeking (尋求刺激) or imperative (沖動) they were. They then evaluated the participants’ multitasking ability with a tricky mental task that required the students to do simple mathematical calculations while remembering a set of letters.
Not surprisingly, the scientists said, most people thought they were better than average at multitasking, and those who thought they were better at it were more likely to report using a cellphone while driving or viewing multiple kinds of media at once. But those who frequently deal with many things at the same time were found to perform the worst at the actual multitasking test. They also were more likely to admit to sensation-seeking and impulsive behavior, which connects with how easily people get bored and distracted.
“People multitask not because it’s going to lead to greater productivity, but because they’re distractible, and they get sucked into things that are not as important.” Sanbonmatsu said.
Adam Gazzaley, a researcher at the University of California, San Francisco, who was not a member of the research group, said one limitation of the study was that it couldn’t find out whether people who start out less focused tend toward multitasking or whether people’s recognizing and understanding abilities change as a result of multitasking.
The findings do suggest, however, why the sensation-seeker who multitask the most may enjoy risky distracted driving. “People who are multitasking are generally less sensitive to risky situations.” said Paul Atchley, another researcher not in the group. “This may partly explain why people go in for these situations even though they’re dangerous.”
小題1:The research led by Sanbonmatsu indicates that people who multitask __________.
A.seek high productivity constantly
B.prefer handling different things when getting bored
C.are more focused when doing many things at a time
D.have the poorest results in doing various things at the same time
小題2:When Sanbonmatsu and his colleagues conducted their research, they __________.
A.assessed the multitasking ability of the students
B.evaluated the academic achievements of the students
C.analyzed the effects of the participants’ tricky mental tasks
D.measured the changes of the students’ understanding ability
小題3:According to Sanbonmatsu, people multitask because of their __________.
A.limited power in calculation
B.interests in doing things differently
C.inability to concentrate on one task
D.impulsive desire to try new things
小題4:From the last paragraph, we can learn that multitaskers usually __________.
A.drive very skillfully
B.go in for different tasks
C.fail to react quickly to potential dangers
D.refuse to explain the reasons for their behavior

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Most students try to learn English grammar using grammar textbooks. They study grammar rules and take grammar tests. They use an analytical approach, attempting to memorize, and then apply, a great number of rules.
However, research has proved this method inefficient and ineffective. The truth is, the human brain simply cannot consciously remember process and use hundreds of or thousands of grammar rules. Real speech is too fast.
Native speakers do not learn grammar in this way, but rather intuitively (憑直覺地) and unconsciously. They learn in a complete way, not by attempting to memorize individual grammar rules. As a result, native speakers use correct grammar fluently and easily.
Fortunately, it is possible for English learners to learn grammar this way. Language teacher Blaine Ray has developed a unique "intuitive" approach to teach English grammar. Her system uses "point of view" stories to teach the patterns of English grammar, allowing students unconsciously to acquire correct grammar without ever studying grammar rules.
In this system, the teacher first tells a simple story from one point of view. It may be told about the past, then repeated, but beginning with "since he was a child"; then repeated again, but this time about the future.
Listening to these stories allows students intuitively and effortlessly to learn English grammar and makes them be able to use it correctly when they speak.
Point of View Stories is a creative new way to study English grammar, and offers hope to millions of frustrated English learners.
小題1:Which of the following ways is approved by the author?
A.Remembering grammar rules
B.Taking grammar tests.
C.Analyzing grammatical structure
D.Applying language to situations.
小題2:What does the underlined part "this way" in the fourth paragraph refer to?
A.Talking to native speakers when learning.
B.Learning English grammar in a complete way.
C.Using correct English grammar.
D.Learning English grammar 4from a teacher.
小題3:From this passage we learn that ______.
A.native speakers learn English grammar by listening to stories
B.Blaine Ray’s method gets students to grasp correct grammar unconsciously
C.Blaine Ray teaches grammar rules by asking students to tell stories
D.it’s hard for students to speak correct English in the new system
小題4: This passage wants to ______.
A.criticize the traditional way of learning grammar
B.introduce a new way to study English grammar
C.ask students to learn English grammar by listening to stories
D.tell us how the native speakers learn English grammar
小題5:why shouldn’t the English learners use an analytical approach?
A.because the analytical approach can let them learn English grammar effortlessly
B.because the analytical approach makes them be able to use English correctly when they speak.
C.because the analytical approach can’t let them memorize and then apply a great number of rules.
D.because Real speech is too fast.

查看答案和解析>>

同步練習冊答案
欧美激情精品久久久久| 蜜臀av午夜精品| 在线免费看视频| 不许穿内裤随时挨c调教h苏绵| 亚洲熟妇av日韩熟妇在线| 亚洲一区尤物| 欧美精品一区在线| 国产成人av一区二区三区| 91精品久久久久久久久中文字幕| 91高清视频免费观看| 久久亚洲欧美日韩精品专区| 亚洲男女自偷自拍图片另类| 欧美成人vr18sexvr| 欧美精品第一页| 欧美色涩在线第一页| 狠狠综合久久av一区二区小说 | 欧美性高清videossexo| 欧美午夜xxx| 精品日本高清在线播放| 性久久久久久久久久久久| 亚洲一区视频在线| 午夜激情久久久| 日韩欧美大尺度| 色欧美日韩亚洲| 日本精品视频一区二区三区| 在线视频一区二区免费| 欧日韩精品视频| 欧美日韩视频在线第一区| 欧美日韩精品专区| 日韩精品最新网址| 日韩激情在线视频| 国产一区av在线| 亚洲电影av| 国内精品久久久久久久影视麻豆| 欧美日韩国产色综合一二三四| 久久久久久久久99精品大| 一区二区国产在线| 99视频+国产日韩欧美| 日韩精品1区2区3区| 激情亚洲综合在线| 成人国产一区二区三区精品| 久久精品亚洲麻豆av一区二区| 久久久亚洲国产美女国产盗摄| 日本一区二区在线不卡| 亚洲男同性恋视频| 日本高清免费不卡视频| 欧美一区二区美女| 一区二区日韩精品| 午夜精品久久久久久99热软件 | 成人免费毛片视频| 国产精品九九九九| 中文在线а√在线| 欧美激情办公室videoshd| av中文字幕在线观看第一页| 91精品国产66| 亚洲欧美日本伦理| 国内一区二区三区| 精品无码三级在线观看视频| kk眼镜猥琐国模调教系列一区二区| 国产香蕉久久精品综合网| 一区二区三区四区蜜桃| 在线观看成人小视频| 日韩av影视综合网| 欧美极品美女电影一区| 亚洲aa在线观看| 少妇精品久久久久久久久久| 免费成人午夜视频| 91亚洲一线产区二线产区 | 亚洲资源在线看| 亚洲欧洲日韩精品| 午夜免费一区二区| 亚洲中文字幕无码av| 九九视频免费看| www.精品久久| av在线播放国产| 国产999精品在线观看| 日韩免费久久| 久久福利视频一区二区| 国产欧美日韩三区| 欧美日韩三级在线| 神马国产精品影院av| 国产精品视频成人| 亚洲一区二区不卡视频| 国产原创精品在线| 人与动物性xxxx| 91禁在线观看| 麻豆tv入口在线看| 久久视频免费| 中日韩视频在线观看| av爱爱亚洲一区| 色综合夜色一区| 一本色道久久综合亚洲精品小说| 国产精品高潮呻吟久久av野狼| 免费日韩av电影| 九色porny自拍| 校园春色 亚洲| 五月激情婷婷网| av福利在线导航| 欧美热在线视频精品999| 亚洲五码在线| 激情久久婷婷| 中文字幕精品一区二区精品绿巨人| 在线观看亚洲精品视频| 北条麻妃一区二区三区中文字幕 | 天天干天天插天天射| 三级在线电影| 欧美电影在线观看网站| 欧美激情福利| 欧美久久影院| 国产女主播一区| 日韩美女在线视频| 国产成人福利视频| 青青视频免费在线| 国产亚洲精品熟女国产成人| 日韩福利小视频| 亚洲精品免费在线观看视频| 美女av在线免费看| 五月开心六月丁香综合色啪| 91视频免费观看| 欧美一区二区免费视频| 国产精品com| 欧美啪啪免费视频| 久久久久亚洲AV成人| 三区在线视频| 国产精品久久久网站| 激情另类小说区图片区视频区| 欧美日韩亚洲视频| 久久久综合av| 青青青青在线视频| 无码黑人精品一区二区| 日本一区高清| 亚洲资源网站| 91一区在线观看| 欧美精品一区二区久久久| 成人激情视频网| 少妇一级淫免费播放| 无码人妻av免费一区二区三区| 二区三区四区高清视频在线观看| 欧美一级精品| 久久久精品影视| 国产小视频国产精品| 鲁片一区二区三区| 亚洲一级中文字幕| 精品一二三四| 日本韩国欧美超级黄在线观看| 国产河南妇女毛片精品久久久| 欧美肥胖老妇做爰| 亚洲xxxx视频| 亚洲av无码一区东京热久久| 亚洲精品字幕在线| 99re6热只有精品免费观看| 国产精品99久久不卡二区| 日韩欧美国产一区在线观看| 成人影片在线播放| 少妇饥渴放荡91麻豆| 五月婷中文字幕| 精品一区二区男人吃奶| 久久久久久久综合狠狠综合| 亚洲视频一区二区| 在线视频精品一区| 免费中文字幕视频| av影院在线免费观看| 久久成人亚洲| 欧美一区二区免费观在线| aa成人免费视频| 成人片黄网站色大片免费毛片| 亚洲成人基地| 97视频精品| 婷婷久久综合九色综合伊人色| 亚洲国产精品小视频| 欧美日韩精品免费看 | 丁香六月婷婷综合| 国产免费不卡| 国产成人午夜99999| 亚洲激情电影中文字幕| 亚洲亚洲精品三区日韩精品在线视频| 欧洲猛交xxxx乱大交3| 春色校园综合激情亚洲| 久久99热99| 一本一本久久a久久精品牛牛影视| 青青在线免费视频| 好吊色在线视频| **精品中文字幕一区二区三区| 丁香六月综合激情| 日韩亚洲欧美中文高清在线| 成人黄色片视频| 欧美熟女一区二区| 色琪琪久久se色| 日韩欧美一区二区三区| 国产精品国模大尺度私拍| 老司机精品免费视频| 色噜噜狠狠狠综合欧洲色8| 美腿丝袜在线亚洲一区| 亚洲美女av电影| 一女被多男玩喷潮视频| 粉嫩av一区二区夜夜嗨| 久久亚洲专区| 欧美精品v国产精品v日韩精品| 日韩福利视频| 精品视频一二三区| 久9re热视频这里只有精品| 一区二区三区免费网站| 高清视频一区二区三区| 久草网在线观看| 国产精品久久乐| 国产精品少妇自拍| 国产精品综合久久久| 99自拍偷拍视频| 欧美电影h版| 国产日产精品1区| 国产精品久久综合av爱欲tv| 精品国产aaa| 午夜精品成人av| 国产精品污网站| 亚洲aaaaaa| 日本少妇性生活| 国产精品色呦| 色婷婷国产精品| 午夜精品一区二区三区在线观看 | 全国精品久久少妇| 久久精品国产91精品亚洲| 五月花丁香婷婷| 日本精品一区二区三区在线播放| 青青草国产成人99久久| 日韩在线免费观看视频| 久久人人爽人人片| 26uuu亚洲电影在线观看| 国产一区二区三区免费在线观看| 欧美精品免费看| 亚洲午夜久久久久久久久| 美女精品导航| 国产日韩欧美激情| 成人黄色片视频网站| 69视频免费在线观看| 天海翼亚洲一区二区三区| 欧美日韩一区精品| 国产自产在线视频| 深夜福利视频一区| 国内精品伊人久久久久影院对白| 久久久久在线观看| 美国黄色特级片| 亚洲一区有码| 色综合天天在线| 黄色片免费在线观看视频| 中文在线中文字幕| 狠狠v欧美v日韩v亚洲ⅴ| 欧美一性一乱一交一视频| 小泽玛利亚一区| 粉嫩av一区二区| 6080yy午夜一二三区久久| 可以免费观看av毛片| 日本最新在线视频| 久久久青草青青国产亚洲免观| 亚洲自拍中文字幕| 亚洲天天综合网| 夜久久久久久| 欧美极度另类性三渗透| 99自拍视频在线| 日韩激情啪啪| 亚洲成人黄色网址| 欧美日韩国产精品一卡| 国产高清视频免费观看| 一区二区三区四区五区精品视频| 久久精品视频亚洲| 国产黄色片在线| 日韩伦理一区二区三区| 精品久久久久久最新网址| 天堂在线中文在线| 亚洲精品粉嫩美女一区| 欧美色道久久88综合亚洲精品| 欧美黄网在线观看| 九色porny在线| 蜜臀精品久久久久久蜜臀| 性欧美暴力猛交69hd| 18精品爽视频在线观看| 成人久久电影| 最近2019免费中文字幕视频三| 亚洲av无码国产精品麻豆天美| 国产成人aa在线观看网站站| 日韩一区二区精品在线观看| www.欧美激情.com| 欧美电影在线观看网站| 制服.丝袜.亚洲.另类.中文 | 欧美成人精品xxx| 一起操在线播放| 999精品色在线播放| 日韩中文字幕第一页| 99久久婷婷国产综合| 水蜜桃久久夜色精品一区| 不卡毛片在线看| av大片免费在线观看| 国产精品普通话对白| 国产精品久久久久久网站| 国产精品久久久久久久久久久久久久久久| 日韩中文字幕区一区有砖一区| 国产精品视频内| www.久久精品.com| 国产精品77777| 欧美激情第六页| 91社区在线高清| 一区二区三区精品在线| 日韩欧美精品在线观看视频| 亚洲第一影院| 日韩欧美中文一区| 91中文字幕永久在线| 日韩中文在线电影| 91精品国产高清久久久久久久久 | 一区一区视频| 久久久123| 欧美日韩一级二级| 国产夫妻性爱视频| 欧美色网址大全| 欧美亚洲成人精品| 国产色在线视频| 91美女精品福利| 国产情侣第一页| 色8久久影院午夜场| 日韩精品一区二区三区四区| 国产毛片欧美毛片久久久| 欧美激情电影| 国产欧美在线播放| 黄动漫网站在线观看| 亚洲天堂2014| 日本特黄a级片| 精品国产一区二区三区不卡蜜臂 | 成人sese在线| 91免费版看片| 亚洲精品555| 亚洲欧美综合精品久久成人| 久久久久亚洲av成人片| 日韩精品乱码免费| 久久精品美女| 日本片在线观看| 日韩精品一区二区三区视频在线观看| 欧美成人另类视频| 在线视频精品| 久久偷窥视频| 黄污视频在线观看| 亚洲第一av网站| 亚洲一区欧美在线| 成人性生交大片免费看中文| 肉大捧一出免费观看网站在线播放 | 国产一区二区在线播放| 日韩一二三四| 在线视频中文字幕一区二区| 美女100%无挡| 久久激情视频| 欧美一级二级三级九九九| 国产网红在线观看| 日韩成人黄色av| 精品人妻一区二区三区潮喷在线 | 蜜桃视频m3u8在线观看| 亚洲黄色成人网| 91精品国产高清一区二区三密臀| 国产91精品欧美| 337p粉嫩大胆噜噜噜鲁| 美女扒开腿让男人桶爽久久动漫| 午夜精品三级视频福利| 传媒av在线| 91偷拍与自偷拍精品| 国产极品尤物在线| 精品伊人久久久| 国产精品久久久久高潮| 国产精品二线| 日韩欧美在线综合网| 黄色av一级片| 国产精品麻豆久久久| 免费在线观看日韩av| 好吊视频一区二区三区四区| 久久精品99久久| 日本不卡一二三| 欧美理论电影在线观看| 922tv免费观看在线| 91久久奴性调教| 欧美三级免费看| 99精品视频在线观看免费| www.污污视频| 韩国久久久久| 亚洲图片欧洲图片日韩av| 国产精品亚洲四区在线观看| 2018日韩中文字幕| 成年人视频在线免费观看| 亚洲精品在线免费播放| 亚洲图片小说视频| 亚洲一区二区三区免费视频| 国产综合精品在线| 国产精品综合二区| 久久婷婷综合色| 韩日成人在线| 色哟哟免费网站| 奇米狠狠一区二区三区| 99re在线国产| 欧美成人a交片免费看| 久久久久一本一区二区青青蜜月| 你懂的在线网址| 日韩成人在线视频| 黄色成人一级片| 欧美日韩国产综合视频在线观看| 日韩不卡视频在线| 一区二区三区蜜桃网|