铸铁气缸或有缸套的气缸,检修、装配完后应进行水压试验,试验的压力为工作压力的()倍。

题型:单项选择题

问题:

铸铁气缸或有缸套的气缸,检修、装配完后应进行水压试验,试验的压力为工作压力的()倍。

A.0.5

B.1

C.1.5

D.2

考点:制氧工考试制氧高级工制氧高级工题库
题型:单项选择题
When I was small, my mum used to give the family something special for meals — she would make breakfast food for dinner. 
I still remember one night my mum        some bread in front of my dad, something very burnt. I waited to see if anybody noticed. To my surprise, my dad just took his       , smiled at my mum and then turned to ask me how my day at school had been. I’ve       what I told him that night.        I do remember watching him put some butter on that bread. He       as usual, every single bit. 
After dinner, my mum said        to my dad for burning the bread. And I never forget what he said, “I        burnt bread, dear. It doesn’t matter at all. ”
     , I went to kiss Dad good night.I asked him if he really liked his bread burnt. He held me in arms and      , “Your mum worked very hard all day. She's really    . And you see—a bit of burnt food never hurt anyone!”
Now I know life is not perfect.        is perfect, either. As for me, I often forget birthdays or some other special days. But I’ve learned something        over these years. What we really need is the understanding of each other, whether between a husband and wife, a parent and         or just between two friends. This is the key to a happy      .
So don’t get angry if the bread gets burnt. Remember,        bread never hurt anyone. Be kind to those around you and a happier life will surely come closer to you.
小题1:
A.cookedB.put C.found D.bought
小题2:
A.glassB.milk C.spoon D.bread
小题3:
A.decidedB.known C.forgotten D.imagined
小题4:
A.ButB.So C.Because D.And
小题5:
A.threw it awayB.ate it up C.put it away D.looked it up
小题6:
A.helloB.goodbye C.no D.sorry
小题7:
A.hateB.love C.make D.save
小题8:
A.The next morning B.Before dinner C.Later that night D.After school
小题9:
A.shoutedB.said C.laughed D.continued
小题10:
A.tiredB.excited C.worriedD.interested
小题11:
A.EverybodyB.Anybody C.Nobody D.Somebody
小题12:
A.importantB.difficult C.funny D.easy
小题13:
A.studentB.brother C.sister D.child
小题14:
A.classB.party C.life D.story
小题15:
A.burntB.cheap C.freshD.cold
题型:单项选择题

井点系统排水时,地下水下降深度约为4~5m。

题型:单项选择题

诊断肺病的常用腧穴是()。

A.中府、肺俞、太渊

B.巨阙、膻中、大陵

C.期门、肝俞、太冲

D.章门、太白、脾俞

E.气海、太溪、肺俞

题型:单项选择题

利用Windows 2000系统中的画图程序,可以绘制图形,并可将图形存为扩展名为()文件。

A..bmp

B. .jPg

C..gif

D..exe

题型:单项选择题

(15分)阅读下列材料:

材料一近代中国历史的主题及其解决的道路,取决于近代中国社会性质。近代中国没有按照正常的规律从封建社会发展到资本主义社会,而是走上了属于资本主义体系的半殖民地半封建道路。这是资本主义和封建主义相结合的结果。压迫和阻止近代中国社会向前发展的主要东西是资本帝国主义国家的资产阶级和中国的地主阶级。因此,摆在中国人民面前的历史主题,是外争独立,内争民主。

——苑书义:《论近代中国的进步潮流》

材料二中国缺少的东西固然很多,但是主要的就是少了两件东西:一件是独立,一件是民主。这两件东西少了一件,中国的事情就办不好。一面少了两件,另一面却多了两件。多了两件是什么东西呢?一件是帝国主义的压迫,一件是封建主义的压迫。……因此,我们要破坏帝国主义,要破坏封建主义。

——毛 * * 《新民主主义的宪政》

请回答:根据上述材料,指出近代中国民主革命的主题是什么?(2分)中国人民为实现这一主题作丁怎样的努力?(8分)这一努力呈现怎样的特点?(3分)给我们怎样的历史启示?(2分)

更多题库