题目内容
(请给出正确答案)
[主观题]
The purpose of non-REM sleep is even more mysterious. The new experiments, such as tho
se _____ 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
查看答案
如果结果不匹配,请 联系老师 获取答案