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    【題目】—I really like eating potato chips.Do you know ________they were invented?

    —Actually,they were invented by mistake.

    A.whyB.whenC.howD.whether

    【答案】C

    【解析】

    句意:——我真的很喜歡吃薯片。你知道它們是怎么被發(fā)明出來的嗎?——事實上,它們是被錯誤地發(fā)明出來的。

    本題考查賓語從句。why為什么,when什么時候,how如何,whether是否。根據(jù)they were invented by mistake.可知,此處詢問它們是如何被發(fā)明的。故選C

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