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When we speak, sound waves begin to travel and go in all directions.
When we speak, sound waves begin to travel and go in all directions.
admin
2019-07-25
17
问题
When we speak, sound waves begin to travel and go in all directions.
选项
答案
我们说话时．声波就开始传送，并向各个方向扩散。
解析
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本试题收录于：
英语题库普高专升本分类
0
英语
普高专升本
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