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    精英家教网 > 高中英语 > 题目详情

    We had three sets of garden tools and we seemed to have no use for___.

    A. none　 B. either　 C. any　　 D. each

     

    已知(NH4)2SO4和(NH4)2HPO4的混合物含氮为21.2%，则混合物中含氧量（ ）。

    A．42.4%　　　 B．48.5%　　　 C．81%　　　 D．无法确定

     

    考查代词，none范围为三者或三者以上，但表否定，与语境不符；either为两者，而题干陈述工具为三套；each范围为两者或两者以上，但多用肯定句；any强调个体，表任何一个。

     

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      1. A.
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      2. B.
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      3. C.
        the word bug was still popularly used in England in the nineteenth century
      4. D.
        both the Englishmen and Americans used the word bug in the gighteen century
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      2. B.
        Finding
      3. C.
        Origin
      4. D.
        Fault
    3. 3.

      The passage is mainly concerned with______.

      1. A.
        the misunderstanding of thr word bug
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        the public views of the word bug
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