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    It would be worth trying you should not succeed at once. A. unless B. whether C. as though D. even though 【查看更多】

     

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    It would be worth trying ________you should not succeed at once.

    [　　]

    A．unless
    B．whether
    C．as though
    D．even though

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    It would be worth trying　　  you should not succeed at once.

       A. unless　　　　 B. whether　　    C. as though　　　　    D. even though

     

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    It would be worth trying　　  you should not succeed at once.

       A. unless　　　　 B. whether　　    C. as though　　　　    D. even though

     

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