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    22．A big step to strengthen China’s health care systems since we launched an effort in 2008. A．has been taken B．is being taken C．was taken D．had been taken 【查看更多】

     

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    A big step   ____   to strengthen China’s health care systems since we launched an effort in 2008.


    1. A.
      has been taken
    2. B.
      is being taken
    3. C.
      was taken
    4. D.
      had been taken

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    A big step _____ to strengthen China's health care systems since we launched an effort in 2008.
    [     ]
    A. has been taken
    B. is being taken
    C. was taken
    D. had been taken

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    A big step   ____   to strengthen China’s health care systems since we launched an effort in 2008.

     A．has been taken  B．is being taken  C．was taken  D．had been taken

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    A big step        to strengthen China’s health care systems since we launched an effort in 2008．

    A．has been taken                                     B．is being taken

    C．was taken                                           D．had been taken

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    A big step　　　 to strengthen China’s health care systems since we launched an effort in 2008.

    A．has been taken　　　　　　　 B．is being taken　 C．was taken　　　　 D．had been taken

     

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