Key firms of the joint air pollution prevention and control
A、firmsthathaveagreaterimpactonregionalairquality;
B、firmsthathaveaminorimpactonregionalairquality;
C、firmsthatdischargingairpollutants;
D、N/A
发布时间：2025-10-15 00:13:23
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答案：firms that have a greater impact on regional air quality
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