34. GWD30-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
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为什么选A

哪位大侠拿给我讲讲这个because,although...是什么用法，看起来像状语里面加状语（乱说的）。。。

B.中的is not subject of 中的subject的意思在本句中使用错误。

C.extremities 使用不对。另外as 同类比较从句缺少主语。D和E 选项中

because 引导一个从句，but引导的从句无法修饰主主句。

A中 because 后边跟了一个复合句作为对本句主句的解释。because 必须

和它后边所跟的复合句用逗号隔开才正确。

be subject to是固定搭配啊，怎么会出现subjected的？？？根据这一条，就可以把A排除了啊！

有没有人解释下？

199. Because the Earth’s crust is more solid there and thus better able to transmit shock waves, an earthquake of a given magnitude typically devastates an area 100 times greater in the eastern United States than it does in the West.

(A) of a given magnitude typically devastates an area 100 times greater in the eastern United States than it does in the West

(B) of a given magnitude will typically devastate 100 times the area if it occurs in the eastern United States instead of the West

(C) will typically devastate 100 times the area in the eastern United States than one of comparable magnitude occurring in the West

(D) in the eastern United States will typically devastate an area 100 times greater than will a quake of comparable magnitude occurring in the West（D）

(E) that occurs in the eastern United States will typically devastate 100 times more area than if it occurred with comparable magnitude in the West

At issue is the accurate expression of a complex comparison. Choice D, the best answer, presents the proper form of comparison, will typically devastate an area 100 times greater than will; thus, choice D logically indicates that earthquakes in the eastern United States are 100 times more devastating than are western earthquakes. Choices A, B, and E use it incorrectly to suggest that the same quake strikes both the eastern and the western United States. In choice C, 100 times the area... than is unidiomatic.