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

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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.
Indeed, in some cases, scientific advances are making animal tests
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答案more valuable
解析 在最后一部分的第一段，叙述动物实验为什么对于基础科学的发展那么重要。
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大学英语四级

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