作者：英吉
Frobisher, a sixteenth-century English explorer, had soil samples from Canada’s Kodlunarn Island examined for gold content. Because high gold content was reported, Elizabeth I funded two mining expeditions. Neither expedition found any gold there. Modern analysis of the island’s soil indicates a very low gold content. Thus the methods used to determine the gold content of Frobisher’s samples must have been inaccurate.
Which of the following is an assumption on which the argument depends?
A. The gold content of the soil on Kodlunarn Island is much lower today than it was in the sixteenth century.
B. The two mining expeditions funded by Elizabeth I did not mine the same part of Kodlunarn Island.
C. The methods used to assess gold content of the soil samples provided by Frobisher were different from those generally used in the sixteenth century.
D. Frobisher did not have soil samples from any other Canadian island examined for gold content.
E. Gold was not added to the soil samples collected by Frobisher before the samples were examined.
题目分析：A说k这个地方现在的金子含量低于十六世纪，没说过现在和过去比，杀。B说探险探索的地方不一样，扯的很远了，杀。C说F这块检测金子的方法和十六世纪用的方法不一样，原文只是说用这个方法检测的结果和另外一个方法检测的结果不一样，至于这两个方法本身是否一样，原文没提，发散型选项，杀。D说其他地方，范围不对，杀。E说在检测前，金子没有被加到检测的样本里面去，不就说没有别的金子来源嘛，还是把其它出口封死，选这个。
