问题 多项选择题

埋弧焊焊剂按其制造方法分类可分为()。

A.酸碱性焊剂

B.熔炼焊剂

C.陶质焊剂

D.颗粒焊剂

答案

参考答案:B, C

解析:

埋弧焊焊剂按用途分为钢用焊剂和有色金属用焊剂,按制造方法分为熔炼焊剂、烧结焊剂和陶质焊剂。

阅读理解

阅读理解。

    

     In 1896, the first modern Olympic Games was held in Athens, Greece. Since then many countries have

successfully held the Olympics, such as England, France, Germany, Canada, the USA, Spain and Australia.

     After more than a century the Games returns to its hometown this year.

     When people hold the Olympic Games, they always make an emblem (会徽). The emblem of the Athens

Olympic Games this year is a white circle of olive branches in the sky. Now Athens is developing a spirit of

peace. An officer said,"While in Athens, the world should be at peace. We hope the peace is not just for a

short time. We would like the message from the Athens Games to help countries come together and solve

(解决) their problems." Four years later, the Olympic Games will be held in China. And China has already

made a seal (印章) as the emblem of the Beijing 2008 Olympic Games. The emblem has a single Chinese

character on a red seal and means "Chinese seal-dancing Beijing". Below it, there are the words "Beijing 2008".

The character in the emblem is "Jing". It means "capital" of China and it is also like a runner or a dancer. The

running figure (人形) of the emblem shows the spirit of the Olympics- faster, higher and stronger.

1. In which country was the first modern Olympics held?

A. Greece.

B. Australia.

C. France.

2. What do people always make when they hold the Olympic Games?

A. An emblem.

B. A flag.

C. A map.

3. What message does the Athens Olympic Games want to give?

A. War.

B. Danger.

C. Peace.

4. How many years have passed when Athens again holds the Olympic Games?

A. 100.

B. 108.

C. 112.

5. The spirit of the Olympic Games is _______.

A. history and friendship

B. faster, higher and stronger

C. peace, friendship and development

单项选择题