机床安装时,每一垫铁组的块数不应超过()块。 A.一 B.二 C.三 D.四

题型:单项选择题

问题:

机床安装时,每一垫铁组的块数不应超过()块。

A.一

B.二

C.三

D.四

考点:设备管理员上岗考试设备管理(综合练习)设备管理(综合练习)题库
题型:单项选择题

阅读理解。

     Have you  ever  been  to  the  Great  Wall  of  China? Every year there are many people visit it and the

visitors find it is very  pleasant in visiting the  Great Wall.  The  Great Wall  of  China is one of the greatest

wonders of the world.  It is more than 2, 000  years old.  It runs from east to west in  North China and it's

about 4,000 miles long, 7 meters high.  In some places it is  wide enough  for ten men to walk side by side.

    The Great Wall is made up of stones and bricks(砖块). There are huge stones on both sides and on the top.

    Along the Great Wall there are tall and  strong  watch-towers(嘹望塔).  Horses can run along the top,  

too.  The ancient soldiers made fire on the towers to tell each other when the enemy came.

    Now in some places the wall has fallen down.  We are trying our best to rebuild it. The Great Wall is a

symbol of the Chinese nation.

阅读短文,按要求做题.

1.  The Great Wall has a history of more than 2,000 years.(同意句转换)

     The Great Wall has a history of__________2,000 years.

2.  In some places of the Great Wall, ten men can walk side by side. It's really wide.(同意句转

换)

    In some places it's__________for__________to walk side by side.

3.  Now some sections of the wall are worn out.(同意句转换)

    Now__________ _________ __________the wall__________ __________ __________.

4.  What is the Great Wall made up of(构成)?

     ______________________________________________________________________

5.What is your opinion about the Great Wall of China?

     ______________________________________________________________________

题型:单项选择题

某山顶气温为—2℃,山麓气温为22℃,则山顶与山麓的相对高度大约为[ ]

A.1440米

B.2400米

C.3333米

D.4000米

题型:单项选择题

南方地区相对于北方地区来说,汛期较短.______.

题型:单项选择题

下列说法不正确的是( )。

A.一个建设项目的实施除了业主方外,还有许多单位参加,如设计单位、施工单位、供货单位和工程咨询单位以及有关的政府行政管理部门等,项目结构图应该注意表达业主方以及项目的各参与单位有关的各部门之间的组织关系
B.对项目组织结构进行的编码和项目结构编码相同
C.项目结构图描述的是工作对象之间的关系
D.项目组织结构图反映一个组织系统中各子系统之间和各元素之间的组织关系,反映的是各工作单位、各工作部门和工作之间的组织关系

题型:单项选择题

下列参数中提高充量系数的措施是()

A.减小进气门直径

B.进气管设计为弯管

C.利用进气管动态效应

D.减小压缩比

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