问题 问答题 简答题

儿童AIDS病的预防应注意哪几点?

答案

参考答案:

(1)严格禁止高危人群献血,在供血员中必须除外HIV抗体阳性者。

(2)控制血液及各种血制品的质量。不从国外进口Ⅷ因子等血制品。

(3)加强宣传教育,普及AIDS知识,尤其对育龄期妇女,让她们懂得自我保护,做好卫生消毒工作。

(4)HIV感染者避免妊娠。

(5)HIV抗体阳性母亲应服用AZA以降低母婴传播

阅读理解

     When American inventor Alexander Graham Bell invented the telephone in 1876, it was a revolution

in communication. For the first time, people could talk to each other over great distances. Over the last

two decades a new means of spoken communication has appeared: the mobile phone.

     The mobile phone is like a two-way radio. But the two-way radio is a limited means of communication. As soon as the users move out of range of each other's broadcast area, the signal is lost. In the 1940s,

researchers experimented with the idea of using a number of radio masts (无线电杆) to pick up signals

from two-way radios. A caller would always be within range of one of the masts. When he or she moved

too far away from one mast, the next mast would pick up the signal. (Scientists referred to each mast's

reception area as being a "cell". This is why in many countries mobile phones are called "cellphones".)

     However, 1940s' technology was just at the beginning. The "mobile phones" were huge boxes. They

had to be moved by car.

     The first real mobile telephone call was made in 1973 by Dr Martin Cooper. As soon as his invention

was complete, he tested it by calling a rival (竞争对手) scientist to announce his success. Within a

decade, mobile phones became available to the public.

     They have changed the way we do a lot of things. One powerful feature is: the short message service

(SMS) or text message. It's the perfect communication method for the busy modern lifestyle. The text

message has changed the way we write in English. The language construction became more lax (松散的). Traditional rules of grammar and spelling are much less important.

     Over the last few years mobiles have become more and more advanced. We have seen the

introduction of cameras, global positioning system and Internet access.

     Alexander Graham Bell would be surprised if he could see how far the science of the telephone has

developed in less than 150 years. If he were around today, he might say: ''That's gr8! But I'm v busy

rite now. Will call U 2nite."        

1. The article is intended to ______.

A. warn people of the possible risks in using mobile phones

B. inform readers of the history and benefits of mobile phones

C. convince people of the uses of mobile phones

D. predict the applications of mobile phones

2. What's the correct time order about the development of communication?

a. the telephone invented by Alexander Graham Bell

b. mobile telephone call made by Dr Martin Cooper

c. "mobile phones" with very large boxes 

d. mobiles with cameras, GPS and Internet access

A. a, c, b, d          

B. b, a, c, d          

C. a, c, d, b            

D. a, b, c, d

3. The last sentence of the whole passage ''That's gr8! But I'm v busy rite now. Will call U 2nite." may probably means ______.

A. That's great! But I'm very busy right now. (I) Will call you tonight

B. It's eight now. I'm very busy. (I) Will call you tonight

C. That's great! But I'm busy writing now. (I) Will call you at two tonight

D. "8" is great! But I'm very busy right now. (I) Will call it "U" to night

4. What do you think of the author according to the last paragraph?

A. Humorous.      

B. Ironic (讽刺的).      

C. Kind.            

D. Worried.

单项选择题