- 精华
- 0
- 积分
- 1790
- 经验
- 1790 点
- 威望
- 178 点
- 金钱
- 178 ¥
- 魅力
- 178
|
15 動物園員工染病
(from 444727)说一个动物园员工感染某种疾病经测出是30%,其实远远不止30%,问原因:
选 员工得了重病的都会马上换其它工作.
People who have spent a lot of time in contact with animals ofen 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 the menbers of the general population who have spent a similarly large amout of time in close contact with animals, the percentage with animal-induced allergies is not 30 percent but substantially more.
Which of the folllowing, if true, provides the strongest ground for the experts' conclusion? A
A. A zoo employee who develops a serious animal-induced allergy is very likely to switch to some other occupation
B. A zoo employee is more likely than a person in the general population to keep one or more animal pets at home
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 animal keep in zoos
E. Zoo employees seldom wear protective gear when they handle animals in their care |
|