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  3. The author raises the issue of ethical consideration in cloning in paragraph 1 in order to _____. It can be inferred from the i

The author raises the issue of ethical consideration in cloning in paragraph 1 in order to _____. It can be inferred from the i

admin2009-04-26  101
问题 The author raises the issue of ethical consideration in cloning in paragraph 1 in order to _____.
It can be inferred from the information given in the text that the best candidate for cloning would be _____.
选项 A、Giant Pandas.
B、an endangered species with many living related species.
C、the species in which previous techniques of artificial reproduction have been successfully applied.
D、those for which cloning is the only feasible method by which to reproduce the species.
答案B
解析 推理判断题。本题问：从本文所给信息中可以推理，下面哪一项会成为克隆的最佳候选者?A项无概括性，不能选用。至于C项，文中只讲到过去曾经采用人工授精的方法来繁殖大熊猫，但这不能推理说，过去成功采用人工技术繁殖的物种是克隆的最佳候选者。至于D"那些只能靠克隆来作为惟一可行的繁殖方法的物种"，文章中没有相关的细节可作为此推理的依据，故不能入选。文章中说到大熊猫是濒临灭绝的动物，而且又有与它相关的物种(如美国黑熊)可以作为克隆媒体。可见，克隆的最佳候选者应具备以上两条，故B为正确选项。
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考研英语一

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