Not only are cars involved in most of the traffic accidents, but they also __________to the pollution of the air. . A、contribute B、promote C、refer D、matter

注意：此页面搜索的是所有试题

Not only are cars involved in most of the traffic accidents, but they also __________to the pollution of the air. .
A、contribute
B、promote
C、refer
D、matter

参考答案

随机试卷

广西工程职业学院世界现代建筑史