GWD5-Q19：感觉这题自身逻辑就有问题

lmx417139

      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?
　　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.
　　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.
　　C. The first provides a context for certain evidence that  supports the position that the historian seeks to establish; the second  is that position.
　　D. The first is a position for which the historian argues; the second is an  assumption that serves as the basis of that argument.
　　E. 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.

       这个题的正确答案选C，其实LZ对答案没有什么问题了，第二个BF应该是整个argument的结论，所以也只有C选项符合。不过总感觉这道题逻辑本身就有问题，如果说第二部分BF得出的结论是报告中的人口数并没有下降，那第一个BF关于人口数的统计是完整的论述不就自相矛盾了吗？因为隐藏人口必然会导致统计数据的不完整，既然如此又如何通过第一个BF得出后面的结论？只能说Historian是在假设数据完整的前提下开始后面的推论的。其实这题难度不大，但是觉得很困惑~~希望有童鞋可以一起分析下

春暖花开19

数据的完整我觉得是指就是说这些年的数据都是齐的所以可以看出来哪些年比较奇怪，对不对不一定，所以用的是complete。