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【GMAT逻辑CR】8788-OG16

浏览次数:49 日期:2017-05-09 11:21:28
Wood smoke contains dangerous toxins that cause changes in human cells. Because wood smoke presents such a high health risk, legislation is needed to regulate the use of open-airfires and wood-burning stoves. Which of the following, if true, provides the most support for the argument above?

Wood smoke contains dangerous toxins that cause changes in human cells. Because wood smoke presents such a high health risk, legislation is needed to regulate the use of open-airfires and wood-burning stoves.

Which of the following, if true, provides the most support for the argument above?

 A

The amount of dangerous toxins contained in wood smoke is much less than the amount contained in an equal volume of automobile exhaust.

 B

Within the jurisdiction covered by the proposed legislation, most heating and cooking is done with oil or natural gas.

 C

Smoke produced by coal-burning stoves is significantly more toxic than smoke from woodburning stoves.

 D

No significant beneficial effect on air quality would result if open-air fires were banned within the jurisdiction covered by the proposed legislation.

 E

In valleys where wood is used as the primary heating fuel, the concentration of smoke results in poor air quality.


【申友解析】


正确答案:E


题干:木材产生的烟含有危险的有毒物质会损伤人类的细胞。因此,应该立法规范户外燃烧木材的炉子的使用。
题目:下面哪一条可以支持题干的主张
分析:给出的信息量较小,题目也没有提供明显的标志,所以首先明确逻辑方向,正向逻辑,比较可能的答案思考方法是引入他因。
选项A,说木材产生的烟较汽车废气的危害小,在一定程度上逻辑方向相反,无法支持题干逻辑。
选项B,混淆关键对象,错误。
选项C,与A相似,逻辑方向相反!
选项D,说即使禁止了户外木材燃烧也对空气质量没什么帮助,逻辑方向相反!
选项E,在主要使用木材作为燃料的山谷里,空气质量因为烟雾聚集变得非常差。正确!

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