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Which of the following underlined parts is different in pronunciation from the others?

A．Please focus your attention on your papers, boys and girls.

B．She likes to show off her new clothes in front of her friends.

C．I think she should improve her learning methods.

D．The boy picked a hole in his new sweater.

試題分析：句意：下列劃線部分哪一個在發音上與其它的不同？此題屬于辨音。根據四個單詞的讀音（其實跟句子沒有關系），過“音標關”的最佳方法是先復習和熟悉44個音標，然后在默寫或背誦時注意“讀準”單詞，不會讀馬上查詞典（也可以用電子字典等），養成習慣，定能做好。本題選C。

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