关于热动力型疏水器说法错误的是()。A、根据相变原理,靠蒸汽和凝结水通过时的流速和体

题型:单项选择题

问题:

关于热动力型疏水器说法错误的是()。

A、根据相变原理,靠蒸汽和凝结水通过时的流速和体积变化的不同热力学原理,使阀片上下产生不同压差,驱动阀片开关阀门

B、热动力式疏水阀的工作动力来源于蒸汽,所以蒸汽浪费比较大

C、结构简单、耐水击、无噪音,阀片工作频繁,使用寿命长

D、热动力型疏水阀有热动力式(圆盘式)、脉冲式、孔板式等

考点:天然气净化操作工考试天然气净化操作工中级天然气净化操作工中级题库
题型:单项选择题

阅读理解。

     I was working as a swimming coach when I met Anita for the first time. Seeing I was swimming,

Anita coming to me and asked me if I could help her to swim as her personal trainer was not available.

I have been a swimming coach for a club and there was no reason to deny her request.

     In few minutes we became good friends and I was told she suffers from back problem. Her doctor

advised her to swim as it might be helpful to her. I took it easy as I have been sailing in the same boat

and swimming was a good option.

     With my experience, I appreciated the thought and recommended her to swim on daily basis.

Without any hesitation she said, "I suffer from spinal arthritis(脊椎炎), a bigger problem than yours."

     As we discussed types of oral medications for back problem, she came closer to me and whispered,

"I can make you feel better. My problem is more severe and requires a spinal injection on weekly

basis rather than oral medication". Her acceptance to her reality gave me strength to bear my pain.

I was glad we met. Undoubtedly, she made me feel better.

     Arthritis has made my life difficult, one problem leading to another. It has made me treasure the

people in my life. The days are getting harder and Anita is an inspiration for me. Anita is working for

an architectural firm, irrespective of all her medical problems. Meeting Anita helped me to understand

that there are three angles to every problem - my angle, your angle and the right angle. Right angle is

the reality that you do not want to accept. I accepted the right angle in my life that my problem is big

but others might have a bigger problem. If they can live with courage and determination, why cannot

I?

    We always focus on 'my angle' and neglect the 'right angle'. Life is easier and better once we

understand the 'right angle'.  

1. Why did the author accept Anita's request?

A. Because her personal coach wasn't there.

B. Because they had became good friends.

C. Because the author was a swimming coach.

D. Because Anita was a person hard to refuse.

2. What does the unlined phrase "sailing in the same boat" mean here?

A. Doing the same thing together.

B. Suffering from the same disease.

C. Swimming in the same swimming pool.

D. Taking the same boat out for swimming.

3. For the author, Anita was           .

A.an encouragement

B.an eager trainee

C. a happy patient

D.an daily swimmer

4. What is the "right angle" according to the author?

A. courage

B. determination

C. acceptance

D. truth

题型:单项选择题

升降机以0.5m/s2的加速度匀加速上升,站在升降机里的人质量是50 kg,

(1)人对升降机地板的压力是多大?

(2)若此时人站在升降机里的测力计上,测力计的示数是多大? 人处于超重,还是失重状态?

题型:单项选择题

流行性乙型脑炎病毒由何种虫媒传播()。

A.蚊

B.蝗

C.蚤

D.虱

E.螨

题型:单项选择题

关于肾的说法错误的是()

A.肾开窍于耳及二阴

B.肾在液为汗

C.肾在志为恐

D.肾其华在发

E.肾在体合骨

题型:单项选择题

对整个社会及其各个环节进行调节和控制体现的是保险的哪项功能?()

A.社会管理功能

B.保险保障功能

C.资金融通功能

D.防灾防损功能

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