在液压系统中,为了提高液压缸回油路的压力,增加进给运动的平稳性,在液压缸的回油路上设

题型:填空题

问题:

在液压系统中,为了提高液压缸回油路的压力,增加进给运动的平稳性,在液压缸的回油路上设置()。

考点:机动车维修技术机械基础机械基础题库
题型:填空题

超大型货物的运输作业程序是()。

A.托运与理货

B.检验道路、编制运行路线图

C.制定运输方案

D.保险与意外事件防备

题型:填空题

菠菜有时有涩口感,这是由于菠菜中含有哪种物质?

题型:填空题

阅读理解。

                                                What makes a house a home?

     Not size, of course. I've been in some of the grandest houses in America, and it's readily apparent no

one lives there. Earlier this year, I had dinner in a mud hut in Ethiopia, where we sat on chairs next to the

hostess' bed -a home that had more warmth than any house I've been in since.

     Now John Edwards is exploring what makes a house a home in his just-released Home: The

Blueprints of Our Lives. There Edwards writes, " This is a book about homes, the values they rest on,

the dreams they are filled with, and the people they have shaped. The houses and circumstances are

different, but much of what you find inside will be familiar."      

     Whether you're sitting in an airport right now, waiting to fly to your childhood home for Thanksgiving,

or in your own home waiting for the relatives to arrive, you know what he's talking about.

     We've lived in our townhouse for 21 years. The loose windows that make noise in the wind. The

fireplace so shallow it holds only one log. The kitchen window that offers a view of the world passing by.

It's where friends sit on the kitchen counter drinking wine while dinner is being fixed.I lived there for only

18, but it will always be my true home. Even the lamp in the west living room window, which I could see

far down the road when driving home late at night, still shines.

     While all this talk about childhood memories can be warm and comforting, home is whom you're with,

not where you are. As Edwards writes, "Home is family. Home is safety. Home is faith."

Happy homecoming.

1.What would be the best title for the text?  

A. Home Means Everything      

B. What's Inside Makes Us Feel at Home

C. Home: The Blueprints of Our Lives    

D. The Importance of the Home

2.The purpose of the second paragraph is to __

A. mean the author likes living in grandest houses

B. prove the author got along well with the hostess

C. mean the feeling of home isn't related to the size

D. show the author's different feelings about houses

3. About the book Home: The Blueprints of Our Lives, we know that __

A. it was the description of Edwards' houses

B. it is mainly about houses

C. it helps us understand the concept of home

D. it was written by the author of the text

4.What did the author mainly mean when he mentioned the loose windows and the shallow fireplace ?

A. His house was too old to live in.

B. He missed the feelings of home.

C. He hated living there.

D. He missed his old friends too much.

5.It can be inferred according to the text that __

A. the author's family were very rich   

B. every happy home is the same

C. the author has been living a hard life  

D. the author and Edwards hold similar ideas

题型:填空题

竞争性抑制剂的动力学特点是

A.Km↑,Vmax不变

B.Km↓,Vmax

C.Km不变,Vmax

D.Km↓,Vmax

题型:填空题

治疗外感发热,邪郁肌腠,经气不利,项背强痛者,应首选()

A.荆芥

B.白芷

C.薄荷

D.葛根

E.柴胡

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