如图所示，处在磁感应强度为B的匀强磁场中的单匝矩线圈abcd，以恒定的角速度ω绕

阅读理解。

     Chen Guangbiao was born in Jiangsu in July,1968. He is the chairperson of a company in Jiangsu.

Now he is one of China's richest men and he has donated a great amount of money to charity projects.

He says he will donate everything he has to charity after he dies.

     When people are in need of help, he will appear at once. He helped people during the Wenchuan

earthquake, the Yunnan earthquake and the Taiwan earthquake. He also gave a helping hand in Japan's

earthquake. He has built many Hope Primary Schools to support the education in poor areas.

     He doesn't do charity for honour. He wants to encourage more people to make contributions to charity.

After announcing he would donate everything to charity after his death, many businesses, overseas (海外)

Chinese people and common people encouraged by him have also promised to do something for charity.

     As a philanthropist (慈善家), he is asked for help every day. Sometimes he gets very tired, but he has

never stopped caring.

     So far, he has received a lot of awards, including Pioneer of the Year, and National May Day Labour

Medal (全国五一劳动奖章). He is considered as one of china's top philanthropists.

1. The article is probably taken from _______.

A. a newspaper

B. a novel

C. a detective story

D. a science book

2. He says he will donate _______ to charity after he dies.

A. nothing

B. some schools

C. everything he has

D. his whole company

3. What does he do charity for?

A. He wants to do charity for money.

B. He wants to do charity for pleasure.

C. He wants to ask people to help him.

D. He wants to encourage more people to contribute to charity.

4. Which of the following is NOT mentioned in the passage?

A. He is from Jiangsu.

B. He has visited many countries.

C. He has helped people in need.

D. He has got a lot of awards.

5. Which do you think is the best title for the passage?

A. Earthquakes.

B. Hope Primary Schools.

C. Pioneer of the Year.

D. Philanthropist Chen Guangbiao.

在相同条件下抽样误差最大的为

A．单纯随机抽样
B．系统抽样
C．整群抽样
D．分层抽样
E．分层随机抽样

复苏病人脑组织功能逐渐恢复的迹象包括( )

A．病人开始挣扎

B．病人肌张力下降

C．病人吞咽动作出现

D．病人眼球可自主活动

E．病人自主呼吸出现并逐步规则和加强

下面有关哮喘特征的描述中不准确的是（）

A.凡气道反应性增高者都是支气管哮喘

B.不同程度的可逆性气道阻塞

C.反复发作性呼气性呼吸困难

D.典型发作时可闻及哮鸣音

E.可自行缓解或经治疗后缓解

关于绷带包扎的注意事项，哪一项是不正确的

A．包扎颌下区及颈部时，应注意保持呼吸道通畅
B．所施压力适度，防止组织受压发生坏死
C．腮腺区包扎不应有压力，以免发生面神经损伤
D．脓肿切开引流后，加压包扎有助于消灭死腔
E．骨折复位后，包扎时应注意防止错位