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his research, man can set foot on the moon now. A. Because B. Thanks to C. So as

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his research, man can set foot on the moon now. A. Because B. Thanks to C. So as

 

_______ his research, man can set foot onthe moon now.

      A. Because               B.Thanks to                C.So as to                 D.In addition to

 

试题答案

【答案】

B

【解析】