The purpose of non－REM sleep is even more mysterious. The new experiments, such as tho

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The purpose of non-REM sleep is even more mysterious. The new experiments, such as those _____ for the first time at a recent meeting or the society for Sleep Research in Minneapolis, suggest fascinating explanations for the purpose of non-REM sleep.

[A] maintained

[B] described

[C] settled

[D] afforded

参考答案:

B19. [B] 本题测试语义搭配。句中提到在某次会议上“讲述”的试验，故选 described最为贴切。[A] maintain“主张；维持”，[C] settle“解决”和[D] afford“担负得起；供给”，均不合上下文的逻辑搭配。