水泥细度检验,用水筛法试验前主要检查()、()、()。

题型:填空题

问题:

水泥细度检验,用水筛法试验前主要检查()、()、()。

考点:水泥生产制造工水泥生产制造工题库
题型:填空题

一国的国际储备一般包括()。

A.黄金储备

B.特别提款权

C.政府的国外投资

D.在国际货币基金组织(IMF)的储备头寸

题型:填空题

已知集合A={0,1,2},B={x|x=2a,a∈A},则A∩B中元素的个数为(  )

A.0

B.1

C.2

D.3

题型:填空题

阅读理解。

     Have you ever heard your own voice? "Of course," you say.

     Has anyone else ever heard your voice? Again you say, "Of course."

     But that's not quite true. Nobody else has ever heard your voice-the way you hear it. When you talk,

you set up sound waves (声波). The air outside your head carries the sound waves to your outer ears.

But, of course, the sound of your voice begins inside your head. The bones (骨头) of your head pick up

the sound waves, too. They carry the sound waves straight to your inner (里面的) ears. You get the sound

from the outside and the inside too. Other people get just the sound waves from the outside. That's why

they don't hear your voice the way you do.

1. Sound travels in the form (形式) of _____.[ ]

A. bones

B. air

C. waves

D. voice

2. The sound of your voice begins _____. [ ]

A. inside your head

B. outside your head

C. in your inner ears

D. in your outer ears

3. When you talk, other people hear your voice _____. [ ]

A. through the bones of your head

B. from the outside

C. from the inside

D. all of the above

4. The phrase "pick up" here means _____. [ ]

A. to raise

B. to get

C. to choose

D. to pull

5. The passage is mainly about _____. [ ]

A. waves in the air

B. the way you hear your own voice

C. voice gets around far and wide

D. the different ways you and others hear your voice

题型:填空题

物业管理的社会化,指的是( )。

A.由物业服务企业通过合同或契约的签订,按照产权人和使用人的意志和要求去实施专业化管理

B.运用现代管理科学和先进的维修养护技术实施专业化的管理

C.摆脱了过去那种自建自管的分散管理体制,由多个产权单位、产权人通过业主大会选聘一家物业服务企业

D.物业服务企业所提供的商品是劳务,方式是等价有偿,业主通过招投标选聘物业服务企业

题型:填空题

有岩石圈及上地幔物质的机械运动使刚性岩块突然断裂而引起的地震是()

A.陷落地震

B.诱发地震

C.火山地震

D.构造地震

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