在新装置开工时,要进行三查四定,什么是三查四定?

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问题:

在新装置开工时,要进行三查四定,什么是三查四定?

考点:石油化工设备知识考试石油化工设备知识考试题库
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不属于生产性噪声的是()。

A.空气动力噪声

B.机械性噪声

C.电磁性噪声

D.人为喧闹

题型:问答题 简答题

正常情况下,子宫腔和输卵管内对比剂应在多少时间内排空()

A.12h

B.24h

C.36h

D.48h

E.48h~60h

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下列地区,不是甜菜集中产区的是[ ]

A.黑龙江

B.吉林

C.新疆

D.辽宁

题型:问答题 简答题

Recently, an Internet game has become a new fashion among young office workers and students. People can “farm” on a piece of “land” and “grow”, “sell” or even “steal” “vegetables”, “flowers” and “fruits” on the Net. They earn some e-money and buy more “seeds”, “pets” and even “houses”.

Joyce interviewed some young people. Here are their opinions.

Harold: I don’t quite understand why they are so mad about the childish game. Maybe they are just not confident enough to face the real world.

Allan: I enjoy putting some “bugs” (小虫子) in my friends’’ gardens and we’ve become closer because of the game. Having fun together is the most exciting thing about it.

Laura: You know, people in the city are longing for the life in the countryside. It reduces my work pressure in the office; besides, it gives me the exciting feeling of being a “thief”.

Ivy: Well, it’s just a waste of time. Teenagers playing the game spend so many hours on it that they cannot pay more attention to their study.

小题1:By playing the game, people can ______.

A.make a lot of money

B.make many friends

C.have great fun

D.better their life小题2: The people “steal” someone else’s “vegetables” to ______.

A.live a more comfortable life

B.show their confidence in the reality

C.earn e-money to develop their own "farm"

D.enjoy the feelings of being children小题3: Among the people interviewed, ______ doesn’t like the game at all.

A.Laura

B.Harold

C.Joyce

D.Allan小题4: What can you learn about Laura from the passage?

A.She is a college student.

B.She lives in a village.

C.She is an office worker.

D.She wants to be a thief.

题型:问答题 简答题

引起系统误差的原因是()。

A.试验前仪器未校正

B.测量者感官障碍

C.受试者个体差异

D.多人参与标准不统一

E.以上均不是

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