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The megaphone makes the voice sound louder because it points sound waves in one direction and keeps them from spreading out in a
The megaphone makes the voice sound louder because it points sound waves in one direction and keeps them from spreading out in a
admin
2010-01-14
41
问题
The megaphone makes the voice sound louder because it points sound waves in one direction and keeps them from
spreading out
in all directions.
选项
A、slithering
B、radiating
C、interfering
D、murmuring
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/3Mhd777K
本试题收录于:
职称英语理工类基础题库职称英语分类
0
职称英语理工类基础
职称英语
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