问题 问答题 简答题

应急通信设备包括哪些?

答案

参考答案:

1.应急中心通信设备:中心主设备、应急指挥台、应急值班台、各种服务器、音视频终端、显示设备、网管以及路由器等网络接入设备;

2.应急现场设备:现场通信平台、移动通信终端、图像采集设备、海事卫星终端设备等;

3.应急抢险电话设备:电话机、区间复用设备、汇接设备、区间适配设备、区间引入线缆等抢险设备器材。

单项选择题
阅读理解

We show an amazing tolerance for a form of pollution that is a growing problem: noise. Airplane traffic is increasing by five percent a year. Urban noise is doubling every ten years. By air, land and sea, we are facing an onslaught of noise that is threatening our ability to live in this world. We have granted ourselves the right to make noise. But what about our responsibilities? Have we developed a sense of acoustic responsibility?

The evidence suggests that we have not. Many people seem to believe they have an unlimited right to make noise with cars and motorbikes, and with loud music at home and in the street. In some countries measures have been taken to force people to make less noise. In Britain, for example, a law has been passed preventing people from disturbing their neighbors with music at night.

It is widely accepted that we should deal with our rubbish in a responsible way Noise is in reality a particularly insidious form of rubbish. It destroys community life, pursues us into our homes, keeps us from sleeping and is the cause of many stress-related illnesses, as well as hearing loss. Our acoustic environment belongs to all of us. Everyone has the right to use it, but no one has the right to abuse it. Let’s start using it responsibly.

1. The underlined word “acoustic” in the first paragraph probably means ________.

A. environment          B. pollution              C. sound             D. rubbish

2. Which of the following statements is NOT correct?

A. Nowadays everyone thinks it’s all right to make noise.

B. British law protects people from their neighbors’ music at night.

C. The level of noise produced in cities is twice as high now as ten years ago.

D. Noise can sometimes cause hearing loss.

3. The passage is probably written to _______.

A. introduce acoustic responsibility             B. call for people to make less noise

C. compare rubbish and noise                            D. describe people’s attitude to noise