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【单选题】

There is no creature that does not need sleep or complete rest every day. If you want to know why, just try going without sleep for a long period of time. You will discover that your mind and body would become too tired to work properly. You would become irritable and find it hard to think clearly or concentrate on your work. So sleep is quite simply the time when the cells of your body recover from the work of the day and build up supplies of energy for the next period of activity. One of the things we all know about sleep is that we are unconscious in sleep. We do not know what is going on around us. But that doesn't mean the body stops all activity. The important organs continue to work during sleep, but most of the body functions are slowed down. For example, our breathing becomes slower and deeper. The heart beats more slowly, and the blood pressure is lower. Our arms and legs become limp(柔软的) and muscles are at rest. It would be impossible for our body to relax to such an extent if we were awake. So sleep does for us what the most quiet rest can not do. Your body temperature becomes lower when you are asleep, which is the reason people go to sleep under some kind of covers. And even though you are unconscious, many of your reflexes(习惯性思维) still work. For instance, if someone tickles(使觉得痒) your foot, you will put it away in your sleep, or even brush a fly from your forehead. You do these things without knowing it. If you don't have as much sleep as your body needs, you will ______.

A.
work properly
B.
think clearly
C.
keep your attention on your work
D.
easily get angry
题目标签:柔软惯性习惯
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参考解析:
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【单选题】下面哪一种做法是不好的卫生习惯?()

A.
吃橘子之前先清洗,再剥皮
B.
西瓜在切开之前不清洗
C.
蔬菜先洗后切
D.
水果经清洗后,用纸巾将表面的水分擦

【单选题】容易致癌的饮食习惯是( )

A.
不吃早餐
B.
常吃烟熏食品
C.
均衡饮食
D.
常吃水果

【单选题】尿布质地要柔软,以()为好。

A.
粗糙纱布
B.
旧棉布
C.
旧涤棉衣服
D.
纸尿裤

【单选题】对习惯性摩擦的治疗不包括()

A.
加以诱导,转移其注意力
B.
注意外生殖器的清洁,检查局部有无寄生虫等疾病
C.
不可用惩罚、责骂、讥笑等手段
D.
适当加用药物氟哌啶醇
E.
鼓励、支持年长儿主动地有信心地克服恶习
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【单选题】下面哪一种做法是不好的卫生习惯?()
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【单选题】容易致癌的饮食习惯是( )
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常吃烟熏食品
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均衡饮食
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常吃水果
【单选题】尿布质地要柔软,以()为好。
A.
粗糙纱布
B.
旧棉布
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旧涤棉衣服
D.
纸尿裤
【单选题】对习惯性摩擦的治疗不包括()
A.
加以诱导,转移其注意力
B.
注意外生殖器的清洁,检查局部有无寄生虫等疾病
C.
不可用惩罚、责骂、讥笑等手段
D.
适当加用药物氟哌啶醇
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鼓励、支持年长儿主动地有信心地克服恶习