2. 外语
  3. The passage summarizes harmful effects of animal experiment. However, as animal experiment is indispensable in a number of areas

The passage summarizes harmful effects of animal experiment. However, as animal experiment is indispensable in a number of areas

admin2009-09-12  88
问题 The passage summarizes harmful effects of animal experiment. However, as animal experiment is indispensable in a number of areas, it might not be stopped or replaced by other alternatives.
It is found that tissues from liver, lung, and immune system can all be tested independently of animals.
选项 A、Y
B、N
C、NG
答案A
解析 根据此题中的liver，lung，immune system这几个关键词，定位在第二部分。
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大学英语四级

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