问题 问答题 简答题

写出P-1304的开车步骤及注意事项?

答案

参考答案:

开车步骤:

①做泵启动前的检查:轴封水正常,冷却水正常,润滑正常盘车正常,联轴器护罩合格;

②关闭泵进、出口倒淋阀;

③打开泵进口阀;

④启动泵进行;

⑤打开出口阀。

注意事项:

不要在锁斗排渣时倒泵(开泵);锁斗系统、出口倒淋阀一定要关闭到位,严防内漏;泵启动后观察有无异常现象。

阅读理解

阅读理解。

     Jim is in a drawing class. The teacher is teaching the students how to draw mountains. Jim likes to draw, but he isn’t good at drawing mountains. So he looks at Wei Hua’s drawing. Her mountain is higher than David’s. Jim then looks at Lin Tao’s mountain. His is the highest of all. Jim thinks he doesn’t like high mountains, but he doesn’t know what to draw. He decides to look at some more drawings. Jim looks at Lucy’s mountain. Her mountain is small. Lily says, “Look at mine, Jim.” Lily’s mountain is smaller than Lucy’s. Jim wants to look at one more mountain. He looks at Liz’s. Hers is the smallest of all. Then Jim looks at the teacher’s mountain on the blackboard again. He starts to draw. At the end of the class the teacher has a look at their pictures and takes out three drawings. He says, “David’s drawing is good. Lily is better than David’s, but Jim’s is the best of all.”

1. What class is Jim having?     

A. A music class.  

B. A drawing class.    

C. A P.E. class.  

D. A geography class.

2. Whose mountain is the smallest?     

A. David’s.        

B. Lin Tao’s.        

C. Lily’s.        

D. Liz’s.

3. How many pictures does Jim look at before begins to draw his picture?     

A. Five.          

B. Six.              

C. Seven.        

D. Eight.

4. Which of the following is NOT true?

A.Jim is good at drawing mountains.  

B. The teacher draws a picture on the blackboard.

C. Jim doesn’t like high mountain.      

D. Lily’s picture is better than David’s.

5. What’s the best title of this article?  

A. How to Draw Mountains Well          

B. Jim’s Hobby

C. Jim’s Art Class                      

D. A Beautiful Mountain

单项选择题