特殊运算符“In”的含义是A．用于指定一个字段值的范围，指定的范围之间用And连接

跑道方位为南北向，飞机由南向北着陆，该飞机所使用的航向信标台距跑道北端的距离一般为（　）m。

A．800～l000

B．600～800

C．400～600

D．250～400

“If music is the medicine of the soul(灵魂), let it play on,” said a famous person. I think he said so because probably he got some help from music. Music has some strange abilities. Medical scientists have found that a person that feels stressed can actually listen to some kind of music and become well.

The researchers said that since stress comes as a result of life events such as starting a new family, starting a new business, and starting a new job, one can actually listen to good music and feel good because good music touches the human mind in a positive way. Music helps you to forget the life events that make you worried and remember the important events that once happened in your life.

Depression(抑郁) is a disease cause by stress, smoking, social problems and so on. Depression is also caused by problems such as failure in business. Depression may bring us weakness, headache, and loss of concentration. Good music makes one remember happy moments or good days. If you play music about love, it makes you feel like falling in love again though you may have had several upset experiences. And such good feeling make you healthy.

Anxiety(焦虑) is another health problem that can be controlled by music. Anxiety is a side effect of some major health problems such as cancer of the liver and cancer of the breast. Good music makes you feel relaxed and removes the pains from these diseases and you feel all right.

Good music can send you to sleep. And you need to know that sleep puts your body in a healthy condition. Sleep takes away the effects of stress, depression and anxiety from a person.

小题1:According to the famous person in Paragraph 1, music can___________.

A．treat many kinds of diseases

B．help you keep healthy in your mind

C．take the place of medicine in treating illness

D．make you remember things happened in the past小题2:Good music helps people remove stress mainly by _________.

A．letting people have a good sleep

B．making people think positively

C．showing something new to people

D．making people focus only on important things小题3:Which of the following is NOT a reason for depression mentioned in the passage?

A．Stress

B．Smoking

C．Failure in business

D．Loss of concentration小题4:According to the passage, one who has cancer will most probably experience __________.

A．stress

B．depression

C．anxiety

D．upset小题5:Which of the following might be the best title for the passage?

A．The health benefits of listening to music

B．Stress can bring us many kinds of diseases

C．Some diseases have something to do with music

D．Tips for us to live a healthy and comfortable life

HCG的检测方法中，目前已被淘汰的是（）

A.ELISA

B.单克隆抗体胶体金试验

C.放射免疫试验

D.胶乳凝集抑制试验

E.生物学试验

左心室后负荷增加见于（）

A.二尖瓣狭窄

B.肺动脉高压

C.主动脉瓣狭窄

D.主动脉瓣关闭不全

E.三尖瓣关闭不全

有效应力