问题 多项选择题

下列()是为了避免静电火花造成火灾和爆炸事故而采取的措施。

A、用来运输各类易燃液体、气体和粉体的设备接地

B、厂区及车间的氧气、乙炔等管道必须连接成一个连续的整体,并接地

C、变压器中性点接地

D、电动机金属外壳接地

E、汽车油罐车行驶时,固定在车底盘一端拖在地上的金属链条

答案

参考答案:A, B, E

阅读理解

What is your favorite color? Do you kike yellow, orange, or red? If you do, you must be an active person who enjoys life. Do you like blue? Then you are probably quiet, shy , would rather follow than lead.

Colors do influence our moods(情绪)。 A yellow room makes most people feel more cheerful and more relaxed than a dark green one; and a red dress brings warmth and cheer to the saddest winter day. On the other hand, black is depressing(令人压抑的). There was a black bridge over the Thames River near London,. The number of people who killed themselves on that bridge used to be larger than on any other bridge in the area-----until it was repainted green.

Light and bright colors make people not only happier but also more active. In the factory, the workers will work better, harder, and have fewer accidents when their machines are painted orange rather than black.

小题1: An active person may like_____________.

A. yellow, orange or red

B. yellow, black or red

C. orange, blue or black

小题2:Most people feel more ___________ in the yellow room than in a dark green one.

A. tired   B. bored   C. relaxed

小题3: Why did more people probably kill themselves on the black bridge than on any other bridge?

A.Because the bridge was too crowded.

B.Because people didn’t like the bridge.

C. Because the color of the bridge was depressing

小题4:In the factory, when the machines are painted orange, the workers will work _________.

A. worse   B. harder   C. more slowly

小题5: which would be the best title for the passage?

A. Your Favorite Color

B. The Secret of Color

C. The Color of a Bridge

单项选择题