求助 GWD-5-19 要考试了

GWD5-Q19:

Historian:  In the Drindian Empire, censuses were conducted annually to determine the population of each village.  Village census records for the last half of the 1600’s are remarkably complete.  This very completeness makes one point stand out; in five different years, villages overwhelmingly reported significant population declines.  Tellingly, each of those five years immediately followed an increase in a certain Drindian tax.  This tax, which was assessed on villages, was computed by the central government using the annual census figures.  Obviously, whenever the tax went up, villages had an especially powerful economic incentive to minimize the number of people they recorded; and concealing the size of a village’s population from government census takers would have been easy.  Therefore, it is reasonable to think that the reported declines did not happen.

In the historian’s argument, the two portions in boldface play which of the following roles?

1. The first supplies a context for the historian’s argument; the second acknowledges a consideration that has been used to argue against the position the historian seeks to establish.
2. The first presents evidence to support the position that the historian seeks to establish; the second acknowledges a consideration that has been used to argue against that position.
3. The first provides a context for certain evidence that supports the position that the historian seeks to establish; the second is that position.
4. The first is a position for which the historian argues; the second is an assumption that serves as the basis of that argument.
5. The first is an assumption that the historian explicitly makes in arguing for a certain position; the second acknowledges a consideration that calls that assumption into question.

不明白 A B的区别在哪里？ 向大家请教~

The first provide a context for the reasoning process. The second is the conclusion reached.

C is correct. The first provides a context for certain evidence that supports the position that the historian seeks to establish; the second is that position.

A The first supplies a context for the historian’s argument; the second acknowledges a consideration that has been used to argue against the position the historian seeks to establish.The second boldface neither acknowledge a consideration nor argue against the historian’s postion. It is an judgment made in light of reasoning process.

B The first presents evidence to support the position that the historian seeks to establish; the second acknowledges a consideration that has been used to argue against that position.

The first boldface is not an evidence, because its does not direct link to the proof of the historian’s position; the second boldface neither is an consideration nor argue against historian’s position, instead, it is historian own position he seeks to establish