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城市规划与空气污染
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为了减少大气污染导致的呼吸道问题,在城市规划方面应该采取什么样的措施?

A

实施绿地和公园。

B

鼓励机动车使用。

C

文明建设。

D

提高公共交通效率并鼓励使用。

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