货箱离地面高度,左右相差应不大于()毫米。 A.10 B.20 C.30 D.40

题型:单项选择题

问题:

货箱离地面高度,左右相差应不大于()毫米。 

A.10

B.20

C.30

D.40

考点:汽车发动机总体构造和工作原理汽车发动机总体构造和工作原理题库
题型:单项选择题

阅读理解。

     We are already familiar with computers-computers work for us at home, in offices and in factories.

But it is also true that many children today are using computers at schools before they can write. What

does this mean for the future? Are these children lucky or not?

     Many people who do not know about computers think of them as machines that children play with.

They worry that children do not learn from experience but just from pressing a button and that this is not

good for them. They think that children are growing not knowing about the real world.

     But people who understand more about computers say that computers can be very good for children. A computer can help them to learn about the real world more quickly, to learn what they want to learn

and think for themselves. And for the future, don't we need people who can think clearly, who know

how to get information quickly and use it well? What do you think?

1."to be familiar with" means to _______.  

A. know nothing   

B. know about  

C. dislike  

D. like

2. Does everyone think computers are good for children?

A. Yes, they do.

B.  No, not everyone thinks do  

C. They don't know.      

D. They are not sure.

3. What can computers help children to do?

A. To think clearly, to do homework and to write.  

B. To play games, to do math and to copy.

C. To think clearly, to get information and to use it well.

D. To count, to clean the house and to get information.

4. Does the writer think computer is a good thing?

A. It isn't mentioned.

B. No, he doesn't think so.

C. He doesn't know.        

D. Yes, he does.

5.Does almost every child today use computers very often?

A. Yes, he does  

B. No, he doesn't  

C. Sorry, I don't know.  

D. That's wrong.

题型:单项选择题
某公司共有9名职工,所有职工的月工资情况如下表所示:
人员经理副经理职员A职员B职员C职员D职员E职员F杂工G
人数111111111
月工资/元60004000170013001200110011001100500
算一算,比一比,用平均数还是中位数来描述该公司职工收入的一般水平更合适?
题型:单项选择题

在企业管理过程中,计划的作用主要表现在()

A.计划是管理者指挥下属的依据 

B.计划是掌握主动,降低风险的手段 

C.计划是明确各职位的权、责、利的制度 

D.计划是减少浪费,提高效益的方法 

E.计划是管理者进行控制的准则

题型:单项选择题

直肠癌最主要的转移途径是()。

A.直接蔓延

B.肠腔内种植转移

C.腹腔内播散

D.淋巴转移

E.血行转移

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水轮机转轮静平衡试验的目的是什么?

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