问题 单项选择题

与传统的网络操作系统相比,Linux操作系统主要的特点有 Ⅰ.Linux操作系统限制应用程序可用内存的大小 Ⅱ.Linux操作系统具有虚拟内存的能力,可以利用硬盘来扩展内存 Ⅲ.Linux操作系统允许在同一时间内,运行多个应用程序 Ⅳ.Linux操作系统支持多用户,在同一时间内可以有多个用户使用主机 Ⅴ.Linux操作系统具有先进的网络能力,可以通过IPX协议与其他计算机连接,通过网络进行分布式处理 Ⅵ.Linux操作系统符合Unix标准,不可以将Linux上完成的程序移植到Unix主机上运行

A.Ⅰ、Ⅱ、Ⅲ、Ⅴ

B.Ⅱ、Ⅲ、Ⅳ

C.Ⅱ、Ⅲ、Ⅳ

D.Ⅲ、Ⅳ、Ⅳ

答案

参考答案:C

解析: Linux操作系统不限制应用程序可用内存的大小,具有先进的网络能力,可以通过TCP/IP协议与其他计算机连接,通过网络进行分布式处理,Linux符合 Unix标准,可以将Linux上完成的程序移植到Unix主机上去运行。

阅读理解

BEIJING--Alarmed by the overreaching ambitions of many Chinese provinces to grow at all costs, China’s top economic chief is calling on officials to calm down and spare a thought for the environment.

Zhang Ping, who heads China’s National Development and Reform Commission, the central economic planning agency, said only five or six of China’s 30 provinces are targeting annual economic growth of 8 percent or 9 percent.

The remaining provinces are aiming for growth rates of more than 10 percent this year, with some wanting to double economic output in the coming five years.

“China has a planned energy supply of about 4 billion cubic tons of coal equivalent(等量的)for the next five years, and this is not enough to meet demands for economic growth to double,” he was quoted as saying on the news portal Sina.Com.

Beijing is increasingly concerned with the ambitions of Chinese provinces across the country to chase high growth despite the central government’s urgent request for a more moderate and sustainable(可持续的)pace of expansion.

Years of rapid economic growth has taken a toll on China’s environment, with Beijing trying to remove some of the damage now.It has an annual growth target of 7 percent for the next five years, well down from last year’s 10 percent.

Zhang said Beijing has asked local governments to take into account the supply of “energy, environment, water and land” to set more reasonable growth targets.

小题1:Which of the following statements is TRUE according to the passage?

A.Many Chinese provinces are alarmed by Beijing.

B.Zhang Ping is an expert and economic chief from www. Sina.Com.

C.The supply of the coal in China is not sufficient(足够的) for the next five years.

D.Few Chinese provinces are aiming for economic growth rates of less than 10%.小题2:The underlined phrase “taken a toll on” in the sixth paragraph means “_________”.

A.looked forward to

B.paid attention to

C.caused damage to

D.attached importance to小题3:The general idea of the whole passage can be that ________.

A.China’s economy is developing

B.China’s top chief places more emphasis on the environment

C.all Chinese provinces should slow down their economic growth rates

D.economic high growth should go hand in hand with environmental protection小题4:What could be the best title for the news?

A.Economic Development

B.Energy Supply

C.Sustainable Development

D.Environment protection

单项选择题