Most cities in the country have introduced "Clean Air Zones" _____ factories and households are only allowed to burn smokeless fuel. A、thereby B、whereby C、by D、hereby

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Most cities in the country have introduced "Clean Air Zones" _____ factories and households are only allowed to burn smokeless fuel.
A、thereby
B、whereby
C、by
D、hereby

参考答案

随机试卷

许昌学院建筑节能(专升本)

石家庄职业技术学院-电气安装工程施工与预算