carbon dioxide is said ________ the earth twice as quickly as previously feared.A.to be heating C.to have heated可是答案给的是A 现在二氧化碳不还是在加热地球吗？

分类: 作业答案 • 2022-08-07 17:25:39

问题描述：

carbon dioxide is said ________ the earth twice as quickly as previously feared.
A.to be heating C.to have heated
可是答案给的是A 现在二氧化碳不还是在加热地球吗？

答