健康教育对象自愿采纳有益健康行为的前提是（） A.态度的改变 B.认知的提高 C.信

阅读理解。

     A little knowledge can make a difference at a time of life or death. Do you know what to do if

you find yourself in an earthquake?

     If you are inside:

    Quickly move under a strong desk, a strong table or along a wall. You can also go into a small  

room like the bathroom. This will protect you from falling things. Do not get into a lift.

    Don't stand near windows ,large mirrors(镜子) ,heavy furniture or fireplaces.

If you're outside:

     Move away from buildings and streetlights. These could fall on you.

   Squat (蹲下)and protect your head until the shaking stops.

     After the earthquake:

    ●Check, take care of injuries and help make sure people around you are all right.

    ●Watch out for aftershocks.

    ●Protect yourself by wearing long pants, a long-sleeved (长袖的) shirt and strong shoes.

    ●Listen to the radio for the latest information.

l .If you are in a tall building when an earthquake happens, you'd better______.

A. run into a lift

B. not stay in the bathroom

C. stand near large mirrors

D. not stand near windows

2. If you are outside during an earthquake, ______.

A. you must move into a building

B. you cannot squat

C. you have to stop the shaking

D. you must move away from streetlights

3. After the earthquake, you should ______. 

A. look after injuries

B. not help the others around you

C. protect yourself without wearing shoes

D. not listen to the radio for the latest information

4. The underlined word" after shocks" in the passage means's ______ "in Chinese.

A. 震感    

B. 震源  

C. 余震    

D. 防震

5. The passage is mainly about ______.

A. what to do before an earthquake takes place

B. what to do if you are in an earthquake

C. how to escape from an earthquake when you're at home

D. how to predict an earthquake in the open air

某孕妇现孕34周，那么，她的血浆量比未孕时约增加（）。

A.50%

B.45%

C.40%

D.35%

E.30%

从古至今都没有长生不老的人，但每个人的寿命都极不相同，从生物学和医学上来看，人类的寿命应该有一个生物学上的最大值，不过目前尚不能确定人类的最高寿命有多高。这段文字主要支持这样一种观点，即人的寿命：

A．是无限的

B．对不同的人是不一样的

C．应该有极限，但目前还未发现

D．空间有多高我们是无法知道的

虚拟存储管理不包括( )。

A．虚拟页式

B．虚拟段式

C．虚拟页段式

D．虚拟段页式

尔霍夫第二定律的内容是，电路中任一回路的各段电压的（）恒等于零。

A.代数和

B.总和

C.代数差

D.和