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    It is a mystery how early man build the Pyramids without the use of modern machines. A. could B. was able to C. would D. had to 【查看更多】

     

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    It is a mystery how early man ______ build the Pyramids without the use of modern machines.

    A. could　　　　　　　　　　   B.was able to　　　　　　    C.would　　　　　　　　　　   D.had to

     

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    It is a mystery how early man ______ build the Pyramids without the use of modern machines.

    A. could　　　　　　　　　　   B.was able to　　　　　　    C.would　　　　　　　　　　   D.had to

     

    查看答案和解析>>


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