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    --_________ useful invention the computer is.
    --Yes, It helps us a lot.

    A.What an B.What a
    C.How D.How a

    B

    解析試題分析:句意:計(jì)算機(jī)是多么有用的發(fā)明啊。是的,它幫助我們很多事情。what/how引導(dǎo)感嘆句時(shí),what后接名詞,how后接形容詞和副詞;Invention發(fā)明,名詞;useful的首音標(biāo)為輔音,故選B.
    考點(diǎn):考查感嘆句

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