大全－1－20

deng2y

题干部分是和大全－1－19是一样的～就不重复了～问的是：
The force of the evidence cited above is most seriously weakened if whick of the following is true?
(A) Gerbils, small animals long native to the area, dig large burrows into which subjects can fall when the burrows collapse.

(B) Pottery of types 1 and 2, found in the lower lever, was used in the cities from which, according to the legend, the besieging forces came.

(C) Several pieces of stone from a lower-layer wall have been found incorporated into the remains of a building in the middle layer.

(D) Both the middle and the lower layer show evidence of large-scale destruction of habitations by fire.

(E) Bronze ax heads of a type used at the time of the siege were found in the lower level of excavation.

这题正确答案是A

tangyp

Gerbils, small animals long native to the area, dig large burrows into which subjects can fall when the burrows collapse.
这就是说因为Gerbils的关系，lower level和middle level的东西可能会发生混淆，evidence的force（middle level和lower level表征时间先后）就会大大削弱了。

deng2y

哦～那这题原来的意思是说中层的pottery是生产于城市被摧毁后的，那么这个意思是不是有间接说明底层的东西就是和摧毁时间同一个时代的呢？然后这个答案是说明因为这种动物的进入而使得中层和底层的东西混淆，从而就不能说明中层的东西是属于摧毁前的了？

tangyp

关于时间的先后不能做过分的推断，这个地方是否那个城市的遗址我们也都不敢肯定，但是确实是因为这种动物的进入而使得中层和底层的东西混淆，使得时间上无法分辨，所以evidence force就削弱了