Air pollution comes from smoke and dust from power stations.smoke and dust from power stations划线部分题问

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Air pollution comes from smoke and dust from power stations.smoke and dust from power stations划线部分题问
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Air pollution comes from smoke and dust from power stations.smoke and dust from power stations划线部分题问
Air pollution comes from smoke and dust from power stations.smoke and dust from power stations
划线部分题问

Air pollution comes from smoke and dust from power stations.smoke and dust from power stations划线部分题问
【What comes from 】smoke and dust from power station?(划线部分为 Air pollution)