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[求助]XDF蓝皮书-20

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楼主
发表于 2009-3-12 10:26:00 | 只看该作者

[求助]XDF蓝皮书-20

Archaeologists seeking the location of a legendary siege and destruction of a city are excavating in several possible places, including a middle and a lower layer of a large mound. The bottom of a middle layer contains some pieces of pottery of type3, known to be from a later period than the time of the destruction of the city, but the lower layer does not.

The force of evidence cited above is most seriously weakened if which of the following is true?

A. Gerbils, small animals long native to the area, dig large burrows into which objects can fall when the burrows collapse.

B. Pottery of type 1 and 2, found in the lower level, 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 axheads of a type used at the time of the siege were found in the lower level of excavation.

the answer is A. Why? How does A weaken the evidence?

沙发
 楼主| 发表于 2009-3-12 10:34:00 | 只看该作者

sorry, forgot to add the hypothese.

the hypothese is"The middle layer does not represent the period of the siege."

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