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9.Sometimesnewideashavetobetestedmanytimesbefore.(accept)有些时候新的想法必须经过多次试验后才能被接受。

题目详情

9. Sometimes new ideas have to be tested many times before         . (accept)

有些时候新的想法必须经过多次试验后才能被接受。

9. Sometimes new ideas have to be tested many times before         . (accept)

有些时候新的想法必须经过多次试验后才能被接受。

9. Sometimes new ideas have to be tested many times before         . (accept)

      

有些时候新的想法必须经过多次试验后才能被接受。

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答案和解析

9. being fully accepted/they are fully accepted before既可用作介词,亦可用作连词,因此,此处既可用从句结构,亦可用分词短语,但都应为被动形式。

9. being fully accepted/they are fully accepted before既可用作介词,亦可用作连词,因此,此处既可用从句结构,亦可用分词短语,但都应为被动形式。

9. being fully accepted/they are fully accepted before既可用作介词,亦可用作连词,因此,此处既可用从句结构,亦可用分词短语,但都应为被动形式。