11-38. People who have spent a lot of time in contact with animals often develop animal-induced allergies,a significant percentage of which are quite serious .In a survey of current employees in major zoos,about 30 percent had animal-induced allergies.However,a zoo employee who develops a serious animal-induced allergy is very likely to switch to some other occupation
Which of the following hypotheses receives the strongest support from information given?
key :Among members of the general population who have spent as much time with animals as zoo employees typically have ,the percentage with animal-induced allergies is significantly mare than 30 percent .
我怀疑 这个题是不是题目有问题啊 是unlikely 还是 likely？
11-22 Whales originated in the freshwater lakes and rivers of ancient Asia about sixty million years ago .Not until about ten million years later did species of whales develop specialized kidneys enabling them to drink salt water .Although fossil evidence shows that some early whale species that lacked such kidneys sometimes swam in the Earth's saltwater oceans,these species must have had to return frequently to freshwater rivers to drink .
key: Fossils of whale species dating from between sixty million and fifty million years ago will not be found on continents that were at the time separated from ancient Asia by wide expanses of ocean 如何理解 谢谢
说说我的理解萨~~~
38. 题目中说雇员中有30%的有病，有病的雇员很容易换到其他工作
答案中说所有人中有病的其实大于30%（因为有转移工作的和没转移的），加强了
22题的题干是什么丫？呵
哦 呵呵 忘记写了 是加强题 大恩不言谢
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