动物30%那道逻辑提，请牛牛指点

纳丁Cat · 发表于 2011-4-12 14:49:55

GWD26-Q22
People who have spent a lot of
time in contact with animals often develop animal-induced allergies, some of
them quite serious. In a survey of current employees in major zoos, about 30
percent had animal-induced allergies. Based on this sample, experts conclude
that among members of the general population who have spent a similarly large
amount of time in close contact with animals, the percentage with
animal-induced allergies is not 30 percent but substantially more.

Which of the following, if true,
provides the strongest grounds for the experts’ conclusion?支持

A. A zoo employee who develops a
serious animal-induced allergy is very likely to switch to some other
occupation. T
B. A zoo employee is more
likely than a person in the general population to keep one or more animal pets
C. The percentage of the
general population whose level of exposure to animals matches that of a zoo
employee is quite small.
D. Exposure to domestic pets
is, on the whole, less likely to cause animal-induced allergy than exposure to
many of the animals kept in zoos.
E. Zoo employees seldom
wear protective gear when they handle animals in their care

求助啊

lonelyorchid · 发表于 2011-4-12 17:35:51

逻辑是，如果动物的饲养者患了过敏，那么他就会被调到其他岗位，因而减少了在调查范围内的动物饲养者患过敏的比例。说明患过敏的比例高于30%。如果平常人跟动物饲养者接触动物的频率相同，那么其患病比例也应高于30%

dengts · 发表于 2011-4-12 17:42:16

A is correct.If I faces this question,I will find a gap in the reasoning.In the conclusion sentence,where is the infomation relationg to zoo emplyee?We must eliminate the gap between zoo emplyees and members of the general population,thus choosing A.

纳丁Cat · 发表于 2011-4-18 13:41:37

谢谢啊~，明白咯

纳丁Cat · 发表于 2011-4-18 13:42:15

找gap.很好~~

spoon0212 · 发表于 2013-6-23 11:40:30

lonelyorchid 发表于 2011-4-12 17:35
逻辑是，如果动物的饲养者患了过敏，那么他就会被调到其他岗位，因而减少了在调查范围内的动物饲养者患过敏 ...

懂了，说的挺明白的

动物30%那道逻辑提，请牛牛指点

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