一Climate change________mainly by too much CO 2 in the air． 一So I think the key is to produce electri...
2023-02-06 01:59:03 160次 2014年初中毕业升学考试（福建省漳州卷）英语（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
一Climate change________mainly by too much CO 2 in the air．
一So I think the key is to produce electricity without creating CO2
A．is caused B．caused C．causes
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