杀灭噬菌体的方法有（）。A.加热 B.用漂白粉消毒 C.用次氯酸盐消毒 D.用紫外线

行为治疗技术的特点包括（）。

A、注重形成靶行为的历史原因

B、用客观的操作性术语描述治疗程序

C、只以外显行为作为评价疗效的标准

D、依据实验研究，从中引申出假设和治疗技术

捣固车方向偏差自动检测拨道三点法是怎样作业的？

Do you sleep well? Some people get off to sleep as soon as their head hits the pillow, but  many others are not so lucky. In fact, the lack of quality sleep has become a public health issue around the world. According to me World Association of Sleep Medicine, 45 percent of the world's population suffer from sleep problems. One in eight people don't sleep well and are easily woken. 7.6 percent sleep less than 3 hours each night. Some even cannot fall asleep for several days in a row.

As a basic bodily and mental need, sleep is essential for our survival, it helps us to fight diseases, strengthen our memory, perform better in work and school and improve our quality of life. Lack of sleep is known to have a significant negative influence on health, both in the short and long term. Poor sleep has been associated with obesity, diabetes, weakened immune systems and even some cancers, as well as depression and anxiety.

The World Sleep Day, held on the third Friday of March, is an annual celebration of sleep to lighten the burden of sleep problems through better prevention and management of sleep disorders.

To achieve this goal, we must figure out what causes sleepiness and sleeplessness.

Unhealthy lifestyle may be the first to blame. More and more people use cell phones and computers in bed, with many staying up until midnight. Modern technology does make our life convenient, but abuse of it ruins our health. Environmental conditions, such as temperature, noise, light, bed comfort also play an important Pole in one's ability to get proper sleep. Besides, improper evening diet, like a full or an empty stomach, coffee and alcohol all contribute to sleep problems. Of course, when it comes to causing poor sleep, stress from finances, family or work should never be ignored．

However, those who suffer from sleep disorders don't necessarily have to continue to do so -most sleep problems can be managed．

小题1:What can be inferred from Paragraph 1?

A．Nobody can stay awake for several days

B．Most people are going through sleep problems

C．Sleep problems have become a worldwide concern．

D．The majority of the world's population can't sleep well．小题2:Which of the following is not a direct cause of sleep problems?

A．Unhealthy lifestyle．

B．Modern technology．

C．Environmental conditions．

D．Work stress．小题3:What will be discussed in the paragraph that follows?

A．The harm of sleep problems．

B．Activities on the World Sleep Day．

C．Interviews of poor sleep sufferers．

D．Measures against sleep problems．小题4:Which best describes the author's attitude to sleep problem in the text?

A．Doubtful．

B．Disapproving．

C．Concerned．

D．Enthusiastic

目前通行的毒性分类方法将毒性分为（）、有毒、（）三类。

久病患者，纳少乏力，自觉腹痛腹胀，但时有减缓，喜揉喜按，舌质淡嫩而苔润，脉细弱。分析其病机可能是（）

A.真实假虚

B.实中夹虚

C.真虚假实

D.虚实错杂

E.虚中夹实