Most air pollution is caused by the burning of like coal, gas and oil. A. fuelsB. article

发布时间：2020-08-17 11:44:41

Most air pollution is caused by the burning of      like coal, gas and oil.
A. fuels
B. articles
C. goods
D. products

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(答案→)A. fuels
B. articles
C. goods
D. products
解析：fuel燃料，题干中coal, gas, oil均为燃料。
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