问题 填空题

联网的各个计算机共享一个公共通信信道,当一台计算机发送消息时,所有其他计算机都能“收听”到此消息。这种网络称为 【2】 网络。

答案

参考答案:广播式

解析: 计算机网络按所采用的传输技术可以分为两类:广播式网络和点-点式网络。在广播式网络中,联网的各个计算机共事一个公共通信信道,当一合计算机发送消息时,所有其他计算机都能“收听”到此消息;在点—点式网络中,每条物理线路连接一对计算机,假如两台计算机之间没有直接相连的线路,那么它们之间的分组传输就要通过中间结点的接收、存储、转发,直至到达目的结点。

判断题
阅读理解

In many ways, our society doesn’t simply prepare for the kinds of lives that the elderly must lead. We have made medical advances that allow people to live longer than ever before, but we do not seem to know what to do with them after we have saved their lives. Too little allowance (津贴) is made for the person who is no longer earning a living, who can not walk long distances or drive a car, or who may have physical or mental disabilities that keep him from communicating with others. The institutional (慈善机构的) care we give our older people is a good reflection of the overall attitude of our society toward the aged.

In the past few years, nursing homes have received wide attention as boring, meaningless places where old people often have little else to do but wait for the end of their lives. Elderly wards in mental hospitals are even worse. One of the most shocking things abort nursing homes has been the unwillingness of people on the outside to show real concern for what happens in these institutions. Even people who are entrusting (委托) a parent to the care of a home rarely ask about the nurse-parent ratio (比率), about the kinds of creative facilities or physical treatment equipment available, or about the frequency of doctors’ visits.

And the government has provided federal money without enforcing high standards of care. In fact federal standards were lowered in 1974. Therefore, in some sense our concern for the aged seems to be moving backwards, not forwards. This picture is in striking contrast to the treatment of respectable patriarchs (男长者) and matriarchs (女长者) in many societies.

1. What would be the most suitable title for this passage?

A. Failure of Care for the Elderly                   B. The Elderly

C. Institutional Care                            D. A National Shame

2. We can conclude from this passage that the writer feels ____.

A. nursing homes should be got rid of

B. a country that can help people live longer should also be able to care for them better

C. people have no thanks toward their parents

D. our society’s institutions need to be reformed

3. The writer believes that people who place a parent in a nursing home should ____.

A. demand higher federal standards

B. consider the example set in other countries

C. be ashamed of not keeping the parents in their own homes

D. investigate it first

4. The writer complains ____.

A. about the indifference of some people towards nursing homes

B. about the shortage of equipment in nursing home

C. that nursing homes keep the aged from communicating with others

D. both A and B