男性，60岁，有慢性支气管炎、阻塞性肺气肿病史10余年，近3年来反复双下肢水肿，此次

下面哪些操作系统能够达到C2安全级别______。
Ⅰ．Windows 3.x Ⅱ．AppleSystem 7.x
Ⅲ．Windows NT Ⅳ．NetWare 3.x

A．Ⅰ和Ⅲ

B．Ⅱ和Ⅲ

C．Ⅱ和Ⅳ

D．Ⅲ和Ⅳ

程序的3种基本控制结构是______。

A．过程、子过程和分程序

B．顺序、选择和重复

C．递归、堆栈和队列

D．调用、返回和转移

36岁，男性农民，高热持续1周，渐畏寒、高热、身痛、腰背肌肉痛，球结膜充血，蛋白尿（＋＋＋），腹股沟淋巴结蚕豆大小，病程第5天起咳嗽咯血不断，气促，喉中痰声噜噜，心率110次／分，口唇青紫。

控制肺出血的主要治疗为（）

A.止血敏

B.利福平

C.第三代头孢

D.青霉素与大剂量氢化可的松

E.镇静剂

阅读理解。

     The Beijing Hutong (old lane) areas have a very special and important position in the rich history and

culture of Beijing. While visiting the Beijing Hutong, you can appreciate the dramatic changes that the rest

of Beijing has undergone. You can see evidence of the history of Beijing, experience the old way of life

and experience traditional Beijing culture.

     The Beijing Hutong is made up of lanes or alleys formed by lines of pre-modern quadrangles (siheyuan), four-sided dwelling compounds or quadrangles consist of one-story courtyard houses, which make up old Beijing, and feature typical Chinese residential architecture.

     Beijing road classification was once s follow: A 36-foot-wide road was called a standard, street, an

18-foot-wide one was a small street and a 9-foot-wide lane was named a hutong. In fact, the Beijing

Hutongs are unclassifiable by the traditional standard, ranging from 40 centimeters to 10 feet in width. The

longest hutong has more than 20 turns. It is easy to get lost in the maze of winding lanes hat is the hutong, with the gray-tiled houses and deep alleys crossing each other, all identical in appearance, with many blind hutongs or culdesacs.

     Hutongs were first named as such in the Yuan Dynasty(1271-1368), with its Mongolian rulers having

an influence on the Chinese language. However, siheyuan or quadrangles have probably been around

much longer. The name of a hutong represents its origin, location or history. It is in the gray-tiled deep

lanes that families play, travel, buy goods, gossip and connect. In beijingers'eyes, hutong means a period

of history, a cordial lifestyle and even an "encyclopedia (百科全书) of Beijing".

     When urban construction threatens the existence of these hutongs, Beijingers become worried. Beijing

still has about 400 000 residential quadrangles now, mainly distribute over the East, West, Xuanwu and

Chongwen districts. The municipal government has marked a number of these compounds for protection.

     If you would like to have a glimpse into Beijing' Yesterday, you are highly recommended to have a

short adventure trip to the Hutongs. Beijing Hutong Tour (Rickshaw Hutong, Bike Hutong and Walk

Hutong) is organized by Beijing Xinhua International Tours.

1. The characteristics of Beijing Hutongs are the following except ______.

A. the name of Hutong dates back to the Yuan Dynasty

B. the width of all the hutongs is 9 feet

C. siheyuans are lined along the two sides of the Beijing Hutongs

D. it is difficult for people, especially a stronger not to be lost in Hutongs

2. From the 3rd and 4th paragraphs, we can infer ______.

A. several famous persons once lived in the Beijing siheyuan

B. "Four Generations under One Roof" is set in old Beijing Hutongs

C. Siheyuan has a longer history than Hutong

D. Beijing appreciate the lifestyle in Hutong

3. What will happen to Beijing hutongs?

A. All the hutongs will be protected.

B. All the hutongs will become places of interest.

C. Government has taken measures to tp protect some of the hutongs.

D. Some of the hutongs will be rebuilt.

4. Where can this passage be found?

A. In tourist handbooks.

B. In geographic magazines.

C. In history books.

D. In books about Chinese culture.

在学生表STUD中，查询既不是信息系'IS'、数学系'MA'，也不是计算机系'CS'的学生的姓名 (XM)和性别(XB)。SD为系名。实现该功能的正确SQL语句是( )。

A．SELECT XM,XB FROM STUD WHERE SD IN ('IS','MA','CS');

B．SELECT XM,XB FROM STUD WHERE SDNOTIN ('IS','MA','CS');

C．SELECT XM,XB FROM STUD WHERE SD NOT ('IS','MA','CS');

D．SELECT XM,XB FROM STUD WHERE SD NOT IN (IS,MA,C;