问题 问答题 简答题

起重机工作类型和工作级别有何不同,有何联系?

答案

参考答案:

起重机工作级别是依据金属结构受力状态为根据划分的,而工作类型是依据工作忙闲程度和载荷变化程度为根据划分的,分类根据不同。

尽管分类根据不同,但两者有对应相当的关系。即A1--A4相当轻型;A5--A6相当中型;A7相当重型;A8相当特重型。

单项选择题
阅读理解

阅读理解。

     Du Fu, the famous Tang Dynasty poet, is getting the business these days. In response to the 1,300th

anniversary of the poet's birth, the meme, "Du Fu is busy," is spreading through the Internet and turning

the iconic poet into a figure of fun.

     A meme is a cultural phenomenon. It's an idea or image that somehow strikes a chord with Internet

users and prompts them to comment on it, change it, or use it in different situations. In Du's case, the

meme is a picture of the poet taken from a textbook. The picture shows a very serious Du sitting on a

rock, clothed in loose robes. His chin is pointed resolutely upward and his eyes gaze calmly into the

distance. It is a picture of a man with a great mind and a heroic spirit.

     That image is changed in the meme. Du Fu is now seen holding a gun or listening to an iPod or

dressed as a Japanese cartoon character. In today's world, it seems fewer people respect great minds

or heroic spirits.

     This is sad because it means we are losing our sense of idealism. Du Fu led a life of poverty and

humiliation. I visited his thatched cottage in Chengdu and imagined the hardship he endured: the loneliness, the cold, and the hunger. Yet, hardship didn't kill his spirit, and his great poetry reflects his inner strength.

     Internet users may find that giving Du Fu the business is entertaining, but it cannot diminish his

greatness. And that enduring image of greatness is the one that truly matters.

1. which expression can be used to replace the underlined part in Para. 1?

A. getting along very well with his business    

B. getting busier and busier

C. becoming a successful businessman        

D. being made to look foolish

2. Which of the following pictures is mentioned in the passage?

A.                  B.               C.               D.

3. What's the author's attitude towards the meme, "Du Fu is busy"?

A. Positive.    

B. Critical.    

C. Doubtful.    

D. Neutral.

4. What's the main idea of the passage?

A. Meme is more and more popular.    

B. Du Fu is no longer a famous poet.

C. Du Fu is getting the business.      

D. Du Fu has become a new hero.