单项选择题

The best way to solve the noise problem is to______.

A．stop using machines
B．make vehicles soundless
C．put something~ in your ears
D．prevent it from reaching human ears
<上一题 目录 下一题>
热门 试题

单项选择题
Domestic noises may perhaps be controlled by______.
A．good planning and technical improvement
B．preventing fast motorcycles and heavy lorries from passing through residential districts
C．being considerate and polite
D．signing international agreements on the noise control measures
相关试题