______a weather warning system is established to help people away from danger heat? ______human activities contribute to global

admin2009-06-24  32

问题 ______a weather warning system is established to help people away from danger heat?
______human activities contribute to global warming?

选项 A、 
B、 
C、 
D、 

答案A

解析 A.指出全球变暖的祸因是人类的极端行为。
转载请注明原文地址:https://kaotiyun.com/show/gLTd777K
0

最新回复(0)