PASSAGE FOUR [br] What is the "gold standard" used to test according to the pass

游客2023-11-27 15

问题 PASSAGE FOUR [br] What is the "gold standard" used to test according to the passage?

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答案 A mad cow disease．

解析从原文第1段即可得出the“gold standard”是用来检测疯牛病的：尽管美国“黄金标准”检测说一头在11月被屠宰的牛没得疯牛病，在英国的检测却确证它患了此病。可见答案为A mad cow disease。

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