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    30．Wind power is an ancient source of energy we may return in the near future. A. on which B. to which C. by which D. from which 【查看更多】

     

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    Wind power is an ancient source of energy        we may return in the near future.

    A．on whichB．by whichC．to whichD．from which

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    Wind power is an ancient source of energy ____we may return in the near future.

    A．on whichB．by which
    C．to whichD．from which

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    Wind power is an ancient source of energy        we may return in the near future.

    A．on whichB．by whichC．to whichD．from which

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    Wind power is an ancient source of energy        we may return in the near future.

    A．on which          B．by which          C．to which          D．from which

     

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     Wind power is an ancient source of energy ____we may return in the near future.

    A．on which                              B．by which

    C．to which                              D．from which

     

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