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    The space is left to let the rail expand when it gets hot, ? A. isn’t it B. is it C. doesn’t it D. does it 【查看更多】

     

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    34. The space is left to let the rail expand when it gets hot, ______?

    A. isn’t it                B. is it           C. doesn’t it            D. does it

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    The space is left to let the rail expand when it gets hot, ______?

    A. isn’t it  B. is it       C. doesn’t it     D. does it

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    34. The space is left to let the rail expand when it gets hot, ______?

    A．isn’t itB．is itC．doesn’t itD．does it

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