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Under ethical guidelines recently adopted by the National Institutes of Health,
Under ethical guidelines recently adopted by the National Institutes of Health,
游客
2025-02-20
49
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问题
Under ethical guidelines recently adopted by the National Institutes of Health, human genes are to be manipulated only to correct diseases for which ________ treatments are unsatisfactory.
选项
A、similar
B、most
C、dangerous
D、uncommon
E、alternative
答案
E
解析
- 方程等号:which引导的定语从句修饰diseases,同义重复。
- 强词和对应:前文说最近研究的人类基因是可以治病的。unsatisfactory和correct取反,human genes和treatments描述不同的治疗方法,因此空格体现两者取反。similar相似的,most大多数的,dangerous危险的,uncommon不同寻常的,alternative其他的。 答案选E。
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