问题 单项选择题

在船舶交通管理系统.(VTS)中,应配置的主要设备有( )。

A.雷达监测系统、通信系统和计算机系统

B.信息采集系统、信息处理系统和计算机系统

C.雷达监控系统、闭路电视监视系统和计算机系统

D.信息采集系统、信息处理系统和信息分析系统

答案

参考答案:A

阅读理解

阅读理解。

     More than 10 years ago, it was difficult to buy a tasty pineapple (菠萝). The fruits that made it to the

UK were green on the outside and, more often than not, hard with an unpleasant taste within. Then in

1966, the Del Monte Gold pineapple produced in Hawaii first hit our shelves.

      The new type of pineapple looked more yellowy-gold than green. It was slightly softer on the outside

and had a lot of juice inside. But the most important thing about this new type of pineapple was that it was

twice as sweet as the hit-and-miss pineapples we had known. In no time, the Del Monte Gold took the

market by storm, rapidly becoming the world's best-selling pineapple variety, and delivering natural levels of

sweetness in the mouth, up until then only found in tinned pineapple.

     In nutrition (营养) it was all good news too. This nice tasting pineapple contained four times more vitamin

C (维生素C) than the old green variety. Nutritionists said that it was not only full of vitamins, but also good

against some diseases. People were understandably eager to be able to buy this wonderful fruit. The new type

of pineapple was selling fast, and the Del Monte Gold pineapple rapidly became a fixture in the shopping basket

of the healthy eater.

     Seeing the growing market for its winning pineapple, Del Monte tried to keep market to itself. But other

fruit companies developed similar pineapples. Del Monte turned to law for help, but failed. Those companies

argued successfully that Del Monte's attempts to keep the golden pineapple for itself were just a way to knock

them out the market.

1. We learn from the text that the new type at pineapple is ______.

A. green outside and sweet inside

B. good-looking outside and soft inside

C. yellowy-gold outside and hard inside

D. a little soft outside and sweet inside

2. Why was the new type of pineapple selling well?

A. It was rich in nutrition and tasted nice.

B. It was less sweet and good for health.

C. It was developed by Del Monte.

D. It was used as medicine.

3. The underlined word "fixture" in Paragraph 3 probably refers to something ______.

A. that people enjoy eating

B. that is always present

C. that is difficult to get

D. that people use as a gift

4. We learn from the last paragraph that Del Monte _______.

A. slowed other companies to develop pineapples

B. succeeded in keeping the pineapple for itself

C. tried hard to control the pineapple market

D. planned to help the other companies

单项选择题