填空题

To a large extent, our ancestors’ total ignorance of sudden changes in weather led to the destruction of some ancient civilizations.

【参考答案】

Y
<上一题 目录 下一题>
热门 试题

填空题
As the result of insurance rates rising nationwide, Americans as a whole are suffering financially, no matter whether they are directly affected by destructive weather or not.
填空题
The fastest warming is taking place in the regions around the South Pole, where glaciers are disappearing at an astonishing speed.
相关试题