stem from来源于,起源于
考察
语意的简介明了,it形式主语在对比b直接主语cost时明显wordy--> it is the costs ... that make(s)” VS “the costs make"
e比较对象不对等“The cost of running nuclear plants is about the same as that of other types of power plants。”
考察:
后:caused by human beings' burning of fossil fuels,而不是by fossil fuels,by human beings , by human beings in burning fossil fuels, 因为引起的是by人类焚烧的行为,而不是中心词人类或者燃料。
这里可以直接排除选c,注意正确的不要犹豫
AB重复
原句有and for 所以选E CD没有