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本題由chris提供

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 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 samples collected by Frobisher before the samples were examined.


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答案:
E
F是個(gè)16世紀(jì)
英國(guó)探險(xiǎn)家,從加拿大K島拿回土壤樣本檢測(cè)金含量。因?yàn)闇y(cè)出金含量高,伊麗莎白一世資助了兩個(gè)開(kāi)礦隊(duì)。兩個(gè)開(kāi)礦隊(duì)都沒(méi)有找到金子。K島的土壤分析表明金含量低。因此用來(lái)測(cè)F樣本金含量的方法不精確 假設(shè)題 A. K島的金含量現(xiàn)在比16世紀(jì)低;削弱,方向反,排 B. 兩個(gè)開(kāi)礦隊(duì)沒(méi)有開(kāi)采K島的同一區(qū)域;無(wú)關(guān),排 C. 用來(lái)測(cè)F樣本的方法和16世紀(jì)其他方法不同;無(wú)關(guān)比較,排 D. F沒(méi)有從其他島上取樣本來(lái)測(cè)金含量;其他島,跳出范圍,排 E. 在樣本檢測(cè)前金子沒(méi)有被加入樣本;取反即有金子加入樣本,測(cè)出金含量高不能說(shuō)明測(cè)量方法不精確,取反削弱結(jié)論,正確

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