搜题请搜索小程序“爱下问搜题”
问题 单项选择题

《机动车运行安全技术条件》规定，机动车转向桥的轴载质量大于（）时，必须采用转向助力装置。

A、1000kg

B、2000kg

C、3000kg

D、4000kg

答案

参考答案：D

改错题
短文改错。
以下标有题号的每一行均有一个错误，请找出，并按下列情况改正：
此行多一个词：把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并也用斜线划掉。
此行缺一个词：在缺词处加一个漏字符号（∧），在该行右边横线上写出该加的词。
此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。
Dear Jerry,                                                                                             
I’m glad to know that you had and interest in Chinese                        
food. Here I'd like to tell you something about them. Chinese               
food is famous with its wide variety. The food in one area                 
can be easy told from that in another. For example, Shanghai               
food, a little bit sweet, differ from Sichuan food that is rather              
hot. However, every kind of the Chinese food is worth trying,            
because each has a delicious taste and good for health. Since               
the restaurant in China usually serves special dish of different               
areas, you can enjoy various Chinese foods whenever you               
are. I'm looking forward to meet you here so that I can tell              
you more about Chinese food at table.                                                
Best wishes.                                                                                    
                                                                                 Jin		1______
2______
3______
4______
5______                           
6______
7______
8______
9______
10______
查看答案
多项选择题

泵的使用性能用（）等基本性能参数来表达。

A.压力、流量

B.转速

C.扭矩

D.功率

E.自吸力
查看答案