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light doesn't travel as fast as sound,( 后面填：does it

分类: 作业答案 • 2023-01-06 23:37:46

问题描述：

light doesn't travel as fast as sound,( 后面填：does it

答

对.前面的是否定的doesn't,反问的时候就要用肯定形式.it指light.