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    1)Three-fourths of all scientific papers published first in English. 2)Two-thirds of the information very useful . A. is B. are C. has D. have 【查看更多】

     

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    (1)Three-fourths of all scientific papers ________ published first in English．

    (2)Two-thirds of the information ________ very useful．

    A．is

    B．are

    C．has

    D．have

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