Most air pollution is caused by theburning of________like coal, gas and oil.[ ]A. fuels B. articles

题目简介

Most air pollution is caused by theburning of________like coal, gas and oil.[ ]A. fuels B. articles

题目详情

Most air pollution is caused by the  burning of  ________like coal, gas and oil.                                   
[      ]
A. fuels              
B. articles  
C. goods              
D. products
题型:单选题难度:中档来源:同步题

答案

A

更多内容推荐