关于口底蜂窝织炎错误的是（） A.应防治窒息 B.预防中毒性休克 C.不宜早期切开引

义齿影响发音的因素有()

A．腭侧基托形态

B．前牙长度

C．覆覆盖

D．前牙位置

E．以上都对

如图所示，两个同名磁极间的磁感线在下列各图中正确的是：[ ]

A.

B.

C.

D.

阅读理解。

     Depression (抑郁症) is a serious problem today.Depression causes workers to be unproductive,

causing companies and countries to lose billions of dollars.One expert says that depression is like cancer

because it is "widespread,costly and deadly".Depression hits one person in five around the world.

      Although people have believed depression to be a problem among the rich and educated,studies

show that depression is a problem among everyone.Over any six-month period,between five to seven

percent of the world's population will be suffering from a serious depression. uicide(自杀)rates among

people suffering from the disease in its extreme,or clinical form were 80 percent higher than in the

population at large,and sufferers were four times more likely to have heart attacks. People who suffer

from depression often have problems sleeping,getting up on time,and doing work productively.

     Depression,which researchers agree has its origin in the genes(基因),brings loss of confidence and

ability to concentrate-making it impossible for employees and managers to work efficiently.

     Depression is made more serious in China by Chinese's inability to face it.Many people believe that

depressed people are either weak or lazy.  Besides,there is no good treatment,with few specialists

available.

     "Most patients in China just don't get help,"a Chinese doctor says."In my hospital.I have to see 30 or

40 patients in a morning,just have time to say "Hello how do you feel?"

     In Western countries,people are not afraid to admit that they have depression,but most do not tell it to

their boss,because they fear that their boss would fire them.

     "In my experience,aging bosses are the most willing to admit they have it. Because they feel the most

secure about themselves,"an American doctor says.

      Hopefully,in the near future,people around the world will be able to admit that they have depression

so that they can get the right treatment.

1. Which of the following is true according to the passage?

A. It is widely believed that everyone may suffer from depression.

B. Depression brings great problems to its sufferers in their life and work

C. Depression is a commonly-existing problem only in rich countries.

D. The poorer and the less educated a person is,the less he will suffer from depression.

2. Compared to normal people,the depressed people are likely to be?.

A. very unconfident and often absent-minded

B. easy to avoid being hit by heart attacks

C. working efficiently and productively

D. either weak or lazy

3. Depression becomes more serious in China because of _____.

A. the understanding of the problem

B. the lack of treatment and doctors

C. their unwillingness to tell it to their boss

D. the doctors' careless work

4. What can we infer from the passage?

A. People are suffering from depression because of the shortage of specialists.

B. The aging bosses around the world dare to say they are depressed.

C. More and more patients will turn to specialists for help.

D. Western people are braver than Chinese people.

一家刚开业的大型超市决定开展降价促销活动，部分商品售价甚至低于成本价，在这种情况下，销售量越大，超市的经济损失就越大。这一决定遭到很多超市员工反对，但超市经理依然坚持这一决定。
以下最能支持经理决定的一项是( )。

A．薄利多销的方式有利于提高超市销售收入
B．物美价廉的商品更容易受到消赞者的欢迎
C．扩大知名度对于新开业的超市至关重要
D．许多超市在开业时都开展降价促销活动

根据《旅游安全管理暂行办法》的规定，旅游安全遵循（）的方针。

A.安全第一，预防为主

B.预防为主，重点防护

C.统一指导，分级管理，以基层为主

D.以社会安全部门的管理为主