What is the passage mainly concerned about?
A. The difference between dream and dreamless sleep of human beings.
B. Why animals with distinctive life style. sleep differently.
C. Deep dream sleep of predators.
D. Stupid animals and smart animals.
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He is not one of those_____members of the staff who read "The.Times" and take an interest
A. proficient
B. submissive
C. intellectual
D. structural
与设定受益计划负债相关的利息费用应计入其他综合收益。()
查封、扣押的最长期限不得超过()日。
A. 30
B. 60
C. 90
D. 120