2. 职称英语
  3. 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  46
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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