[求助]TT GWD-30-34

Q34:

Books in European libraries last longer than books in libraries in the United States
                because, although the climate in Europe is fairly humid, libraries there are not subjected to the extremes of temperature and humidity that damage collections in the United States.

1. because, although the climate in Europe is fairly humid, libraries there are not subjected to the extremes of temperature and humidity that
2. because, although the climate in Europe is fairly humid, libraries there are not subject of the extremes of temperature and humidity as those that
3. because, although the climate in Europe is fairly humid, libraries there are not subjected to the extremities of temperature and humidity as
4. because the climate in Europe is fairly humid, but still libraries there are not subject of the extremes of temperature and humidity as(A)
5. because the climate in Europe is fairly humid, but libraries there are not subjected to the extremities of temperature and humidity such as those that

为什么不选Ｂ呢

subject 作名词和动词时意思改变

首先，be subjected be sth

其次，those指代什么？如果指代libraries那么，libraries不能damage collection吧

倒是没注意到这点...昨天半夜做的,迷糊状态

float up

查了一下字典

be subjected to是“经历或遭受某事物”

she was repeatedly subjected to torture 她不断地受到折磨