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    The problem of become a serious one. A. dealing with waste plastics have B. deal with waste plastics have C. dealing with waste plastics has D. to deal with waste plastics has 【查看更多】

     

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    The problem of ________ become a serious one.?

    A.dealing with waste plastics have

    B.deal with waste plastics have?

    C.dealing with waste plastics has

    D.to deal with waste plastics has

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    The problem of ________ become a serious one.

    [　　]

    A．dealing with waste plastics have

    B．deal with waste plastics have

    C．dealing with waste plastics has

    D．to deal with waste plastics has

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    The problem of ________ become a serious one．

    [　　]

    A．dealing with waste plastics have

    B．deal with waste plastics have

    C．dealing with waste plastics has

    D．to deal with waste plastics has

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    The problem of _________ become a serious one．

    [　　]
    A．

    dealing with waste plastics have

    B．

    deal with waste plastics have

    C．

    dealing with waste plastics has

    D．

    to deal with waste plastics has

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    The problem of ________ become a serious one．

    [　　]

    A．dealing with waste plastics have

    B．deal with waste plastics have

    C．dealing with waste plastics has

    D．to deal with waste plastics has

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