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    Every means tried, yet no result encouraging up to now. A. have been ...is B. has been...has been C. have ...has been D. has...is 【查看更多】

     

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    Every means ______ tried, yet no result ______encouraging up to now.

    A. have been ...is   B. has been...has been    C. have ...has been        D. has...is

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    Every means ______ tried, yet no result ______encouraging up to now.

    A. have been ...is  B. has been...has been C. have ...has been  D. has...is

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