题目内容

下列词语中是轻声的有()。

A. 快乐
B. 质量
C. 爱人
D. 效率

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一个音节变成轻声后,它的()会发生变化。

A. 音高
B. 音强
C. 音长
D. 音色

轻声的作用有()。

A. 区别词义
B. 区别词性
C. 在朗读中增强节奏变化
D. 增加感情色彩

“东西”是必读轻声词。

A. 对
B. 错

[音频]In recent years, air pollution is seriously affecting our life, especially in big cities. Now listen to a conversation and choose the things the government has been doing to reduce air pollution.

A. stopping coal burning and driving
B. reducing the sale of private cars
C. encourage the use of public transport
D. limiting road traffic and air traffic
E. encouraging new energy cars.
F. reducing the use of private cars.

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