D．uring REM, ______.

A． your eyes move quickly

B． you dream

C． you are restless

D． both A and B

[单选题]In April, thousands of holidaymakers remained abroad duc to the volcanic ash cloud.A．stickingB．stuckC．to be stuckD．to have stuck

[单选题]REM睡眠特点是（　　）。A.眼动图为快而不规则眼动，肌电图示波幅下降B.眼动图示慢而不规则眼动，肌电图示波幅下降C.眼动图示无眼球运动，肌电图示肌电

[单选题]REM期EEG表现为（　　）。A.持续中等波幅的混合波B.阵发θ节律，顶尖波C.α节律解体，散在α波，阵发θ节律D.δ波逐渐增多，占20%～50%E.

[单选题]REM期EEG表现为（　　）。A.持续中等波幅的混合波B.阵发θ节律，顶尖波C.α节律解体，散在α波，阵发θ节律D.δ波逐渐增多，占20%～50%E.

[单选题]REM睡眠特点是（　　）。A.眼动图为快而不规则眼动，肌电图示波幅下降B.眼动图示慢而不规则眼动，肌电图示波幅下降C.眼动图示无眼球运动，肌电图示肌电

[单选题]D．uring the project, requirements change for a variety of reasons. As needs change and as work proceeds, additional requirements are derived and changes may have to be made to the existing requirements. It is essential to manage these additions and c

[单选题]It is a process during ______ the body releases water to cool the skin.A． whenB． whichC． whereD． that

[单选题] During the project, requirements change for a variety of reasons. As needs change and as work proceeds, additional requirements are derived and changes may have to be made to the existing requirements. It is essential to manage these additions and c

[单选题]D．uring the war there was a serious lack of food. It was not unusual that even the wealthy families had to bread for days.A． eat up B. give away C. do without D. deal with

[单选题]D．uring bunkering, the request for stoppage of pumping shall be made, as a rule, 5 minutes ______.A．agoB．beforeC．aheadD．front