有两种理想气体,第一种的压强记做p1,体积记做V1,温度记做T1,总质量记做m1,摩

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问题:

有两种理想气体,第一种的压强记做p1,体积记做V1,温度记做T1,总质量记做m1,摩尔质量记做M1;第二种的压强记做p2,体积记做V2,温度记做T2,总质量记做m2,摩尔质量记做M2。当V1=V2,T1=T2,m1=m2时,则M1/M2为()。

A.A

B.B

C.C

D.D

考点:一级注册结构工程师一级结构师基础知识一级注册结构工程师基础部分上午试卷
题型:单项选择题

Here is a true story about a famous man who worked in the White House and a criminal. They once faced the same thing: their mother gave them apples when they were young.

The criminal said: one day, my mother brought some apples and asked my brother and me: “Which do you want?” “The reddest and biggest one,” my little brother said. My mother stared at him and said to him angrily: “You should learn to give the good things to others; you shouldn’t always think of yourself.” Seeing this, I suddenly changed my idea and then said to my mother: “Mum, please give me the smaller one and give the bigger one to my little brother.” Hearing my words, my mother was very happy. She kissed me on my face and gave the reddest and biggest apple to me as a prize. From then on, I learned to tell lies, fight, steal and rob. In order to get what I wanted, I played hard. As a result, I was sent into prison.

The famous man from the White House said: One day, my mother brought some apples. She said to my brother and me: “You all want the reddest and biggest one, right? Well, let’s have a competition. Now I divided the grassland in front of the gate into two and I will give one to each of you and you must shear(修剪) it well. And I will give the reddest and biggest apple to him who does it the most quickly and best.”

After the competition, I won and I got the biggest apple. In our family, as long as you want to get the best things, you must take part in competition. I think it is fair. No matter what you want, you must pay lots of efforts.

小题1:The criminal got the reddest and biggest apple because      .

A.he told the truth that he wanted a smaller one

B.he knew how to make his mother happy from her answer

C.elder brother should of course have the bigger one

D.his mother loved him more than she loved the younger brother小题2:We can conclude from the passage that      .

A.it’s wrong to ask children to choose apples when they are not old enough

B.it’s important to make children aware that no matter what they want, they must pay work

C.it’s wrong to ask children not to always think of themselves

D.it’s always necessary to have a competition when we give children apple小题3:The writer tells the story by      .

A.organizing it in the order of time

B.making a comparison between two men

C.providing some scientific information

D.describing it in the order of space小题4:It is implied in the passage that      .

A.we should always try to win competitions which can bring us a lot

B.in order to get what we want, we should play hard

C.a mother’s educational method has a great influence on a child’s growing

D.giving children apples will lead them to become criminals

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城市桥梁施工中,钻孔灌注桩的护筒一般由钢板加工而成,其内径宜比桩径大( )。

A.100~200mm

B.100~300mm

C.200~300mm

D.200~400mm

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