题目信息
A country's Aeronautics Board (AB) employs inspectors who make routine annual inspections of all aircraft. On inspecting Azura Airlines' airplanes in December, they reported considerably more violations of AB rules this year, compared to a year ago. This fact explains why Azura had more accidents this year, compared to last year.

Which of the following, if true, would cast most doubt on the conclusion in the passage?
A:A.Some aviation experts in other countries consider certain AB rules to be too lax and too easy to get around.
B:Azura's routes are no more dangerous than are those of most other airlines.
C:The AB increased the length and rigor of its inspections this year, compared to last year.
D:Prior to last year Azura had an excellent safety record with very few accidents.
E:In both years the AB report on Azura did not include violations on airplanes owned by Azura but leased by another airline.
参考答案及共享解析
共享解析来源为网络权威资源、GMAT高分考生等; 如有疑问,欢迎在评论区提问与讨论
正确答案: C:The AB increased the length and rigor of its inspections this year, compared to last year.
答案C
题目类型:削弱题。
题目大意:一个国家的航空委员会(AB)雇用检查员,他们对所有飞机进行例行的年度检查。 在去年12月检查Azura航空公司的飞机时,与去年相比,他们报告今年违反AB规则的情况要多得多。 这个事实解释了为什么Azura与去年相比发生了更多事故。
题目逻辑:需选择出能够使违反AB规则和发生更多事故没有固定联系的项目
A.引入了其他因素,论述AB规则的合理性,外国专家的看法或许有道理,但不是最核心的否定句。
B.引入无关因素,题目讨论的是A公司与去年相比发生了更多事故,不是与其他公司相比。
C.提出可能解释,今年的检查本身与去年相比有所差别,在核心逻辑“检查-事故”上进行反驳,正确。
D.引入无关因素,前年与题目讨论无关。
E.无关选项,两年处理一样对论证没有影响。
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