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    In order to get the exact result, the scientists made . A. a lot tries B. to do experiments C. trial and error D. great try 【查看更多】

     

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     In order to get the exact result, the scientists made _______.

       A. a lot tries         B. to do experiments    C. trial and error      D. great try

     

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    In order to get the exact result, the scientists made _______.

       A. a lot tries         B. to do experiments    C. trial and error      D. great try

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