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The passage is mainly about ______. [br] By saying "DNA testing is not an unfail
The passage is mainly about ______. [br] By saying "DNA testing is not an unfail
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2024-05-13
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问题
The passage is mainly about ______. [br] By saying "DNA testing is not an unfailing proof of identity", the author means
选项
A、DNA testing can be wrong in its practices
B、there are identical patterns of genetic material
C、many people have the identical DNA profiles
D、DNA testing are endangering people’s privacy
答案
B
解析
细节题。这一题的问题涉及一个句子的意思。我们从第五段第三句中可以看出，Jeffrey认为有相同 DNA指纹的人出现的几率在十亿分之一到百亿分之一之间。也就是说，尽管几率很小，还是有相同的可能性，这才是作者为什么说DNA指纹不总是完全准确的原因，所以答案是B。
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