We may conclude from the text that _____.[A] human cloning will not succeed unless

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We may conclude from the text that _____.

［A］ human cloning will not succeed unless the technique is more efficient

［B］ scientists are optimistic about cloning technique

［C］ many people are against the idea of human cloning

［D］ cloned animals are more favored by owners even if they are weaker

参考答案:

A本题考查全局事实细节题。文章一开始就引用专家威斯苏森的话，指出克隆人是愚蠢的尝试。第二段最后两句提到，克隆实验的低效性和危险性在克隆人中不可接受。文章末尾再次引用该专家的话，指出现在动物的研究还没成功，没有必要想到克隆人。由此可见，技术是克隆实验存在的主要问题，也是阻碍克隆人实验的重要原因，因此可推知［A］正确。［B］明显错误，科学家并不乐观。全文只涉及专家和拥护克隆实验的人的观点，因此无从推知［C］。［D］在文中未提及。

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