在自控系统中,确定调节器、控制阀、被控对象的正、反作用方向必须按步骤进行,其先后排列

题型:单项选择题

问题:

在自控系统中,确定调节器、控制阀、被控对象的正、反作用方向必须按步骤进行,其先后排列次序为()。

A、调节器、控制阀、被控对象

B、控制阀、被控对象、调节器

C、被控对象、调节器、控制阀

D、被控对象、控制阀、调节器

考点:化工操作工考试化工仪表及自动化部分化工仪表及自动化部分题库
题型:单项选择题

迷走神经兴奋可使心脏

A.心率减慢、传导减慢、心房肌不应期缩短

B.心率加快、传导减慢、心房肌不应期缩短

C.心率加快、传导加快、心房肌不应期缩短

D.心率减慢、传导减慢、心房肌不应期延长

E.心率减慢、传导加快、心房肌不应期缩短

题型:单项选择题

【校园话题 8分】 下面是中学生小李和小王的网络聊天记录:

小李:嗨!你不是向老师请病假住院了吗?怎么在玩飞车游戏?

小王:嘘!生病是装的!不编能准假吗?坐在教室里好无聊,还是网吧舒坦!

小李:不怕我告发你?

小王:量你敢!现在是上课时间,你不是在上手机QQ吗?这节啥课?

小李:数学课!没兴趣了!这节课我和数学尖子一起迟到了,老师让数学尖子回到座位上,却让我站在门口,太不公平了!郁闷!

小王:是不公平哦!今天我也郁闷呢!

小李:咋啦?

小王:我花380元买了双鞋,才穿三天就破了!水货!你说我该怎么办?

请结合所学知识简要回答下列问题:

(1)请你指出小王的错误行为有哪些。(3分)

(2)从小李所遭遇的层面,谈谈你对公平含义的理解。面对这种不公平,他应该怎么做?(2分)

(3)小王买了水货鞋,你认为他应该怎么办?(3分)

题型:单项选择题

第三部分 阅读理解 (共20小题;每小题2分,满分40分)

阅读下列短文。从每题所给的四个选项(A、B、C和D)中。选出最佳选项.并在答题卷上将该项填出。

A

My wife passed away a few years ago, and I went through the worst time in my life. I even wanted to kill myself. Just for my kids, I had to continue to live and work as a small town doctor at my medical clinic in Hawaii. My kids had gone to live on the mainland, and I was alone. Then they asked me to have a family trip.

On our trip, we turned on the TV at the motel and saw the second plane crash into the World Trade Center. Seeing it falling down, I said to my kids: "I'm going to Afghanistan". And a few weeks later, International Medical Corps sent me to set up 20 clinics in provinces where people had no health care. In these field clinics surrounded by frightening shoots or deadly bombs, we were eventually serving 27,000 patients a month in a very busy schedule. Tired and nervous, I gradually had a sense of achievement, a sense of purpose, and my depression went away.

In the years to follow, I went to Indonesia after the tsunami (海啸), Pakistan after the earthquakes, Sudan after the civil war, and Iraq after more and more bombs. Each time after disasters one after another, hundreds of people were killed, wounded and many more had to flee. We once set up movable clinics in an area with 19,000 refugees, and it was supposed to hold 13,000 originally. Flu broke out, one of the biggest killers of kids in refugee camps, and it spread like wildfire. Water and food were also serious problems. "Adventures or not?", I often asked myself.

When my wife passed away, I thought my life was done. But in reality, it was just getting started. At the end of her life, she went unconscious. I held her head in my hands and told her of all the places we would visit and the exciting adventures we would have.

I think about the moment many times during my "adventures". I didn't know how predictive those words would be. But I know that she is still with me.

56. Where has the doctor been in the past few years?

A. Some countries where he could set up clinics.  

B. Some African countries where flu broke out.

C. The places where the earthquakes happened.

D. The places that the horrible disasters struck.

57. How would the doctor describe his life after he had worked in Afghanistan?

A. Tired and troublesome.           B. Busy and risky.

C. Meaningful and helpful.          D. Frightening and depressing.

The underlined word "refugees" means people__________  

A. who are robbed, killed, or wounded    B. who suffer from flu in movable clinics

C. who like to take adventures          D. who have lost homes because of disasters

59. Which of the following is TRUE according to the passage?

A. The doctor's wife encouraged him to work in foreign countries.

B. What the doctor said to his wife before her death became reality.

C. The doctor's adventures made him understand the love of his wife.

D. With the true love of his wife; the doctor started to change his life.

题型:单项选择题

高热惊厥中的特点不包括()

A.年龄1~3岁多见

B.高热数天后发病

C.惊厥呈一过性

D.抽搐间期神志转清

E.体检无神经系统阳性体征发现

题型:单项选择题

中华人民共和国的法定货币是(),它的单位是();它的辅币单位是()、()

A.人民币、角、分、厘

B.人民币、元、角、分

C.人民币、角、分

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