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    精英家教网 > 高中英语 > 题目详情
    Scientists study ____ human brains work to make computers.
    A．whenB．howC．thatD．whether
    B
    本题考查名词性从句。句意为：科学家研究人类大脑是如何工作以制造出电脑的。根据句意，故答案选B。
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