Some evidence suggests that REM sleep be a time when the brain adapts to life ex

游客2023-12-15 49

问题 Some evidence suggests that REM sleep be a time when the brain adapts to life experience.

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答案 be——is

解析在表示建议、命令、要求等单词所引导的从句中应采用虚拟语气should do。但此处suggest不表示建议，意为“表明，暗示”，故从句不需要用虚拟语气。

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