理想气体是这样一种气体,其气体分子是()A、不占体积的质点,分子之间没有作用力 B、

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问题:

理想气体是这样一种气体,其气体分子是()

A、不占体积的质点,分子之间没有作用力

B、占微小体积的质点,分子之间没有作用力

C、占微小体积的质点,分子之间有微弱作用力

D、不占体积的质点,分子之间有微弱作用力

考点:综合计量工考试中级综合计量工中级综合计量工题库
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患者,男,10岁,1年来不自主反复突然眨眼,泪成急速,耸肩或歪嘴,每个动作不到1秒即结束,今年来经常突然喉中“哼”一声,见医生可坚持数分钟不发作,神经系统检查未见异常体征。其最可能的情况是()。

A.舞蹈样动作

B.动作性震颤

C.抽动症

D.惊动症

E.肌张力障碍

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用一根长36厘米的铁丝焊成一个正方体,它的体积是______cm3,表面积是______cm2

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Matches made over the Internet often do not last long because people end up choosing unsuitable

partners and forming emotional bonds before meeting face-to-face, an Australian university researcher

has found.

Women may especially find Mr. Wrong, as they tend to be attracted by fine comments or clever

emails, said psychologist Matthew Bambling from the Queensland University of Technology.

“You can never assume things are the way they seem online,” Bambling said. “The fact that they

can write a clever comment or a witty email doesn’t mean they will be Mr. Right, that’s for sure,” he

said, adding some men use the concept of “netting”, sending emails to dozens of women and hoping

one might respond. Bambling said you can find a partner online, but warned those using the Web to

find love to be aware of the traps. “There’s definitely an uncontrolled effect online,” he said, with

people more likely to exaggerate their good points while hiding anything negative. “Few guys for

example would say ‘look, I’m a middle aged alcoholic who’s been married five times, pick me’.

They’re going to present themselves as a good catch.” He said it was easy for people to quickly invest

too much emotionally in an online relationship because they don’t see the full picture of the person

they are emailing.

Bambling said people can avoid many of the problems by meeting early in the actual relationship,

rather than by getting to know each other only by email. He suggests couples arrange to meet over

coffee after a few emails, which will help people from building up a fantasy image of their match.

“The main thing to remember is to make real life contact as soon as possible if you are interested in

someone, because then you will know contact as soon as possible if you are interested in someone,

because then you will know if a relationship is a possibility.” He said.

1. Why were women quite likely to find Mr. Wrong over the Internet?

A. Because they often judge a person by his appearance.

B. Because single women usually felt more lonely.

C. Because the emotional bonds were hard to break.

D. Because they were easily attracted by fine comments.

2. About the online relationship Bambling suggests we should be ______.

A. rejective    B. favorable      C. cautious      D. hopeful

3. The underlined word “exaggerate” in Paragraph 3 probably means “______”.

A. enlarge     B. invent         C. remove       D. cover

4. What is suggested by Bambling for a better online relationship?

A. Writing clever comments or emails to girls frequently.

B. Finding a partner online through one night respond.

C. Making real life contact before further development.

D. Investing much emotion in your partner.

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电弧焊时,电弧周围空气在强烈弧光辐射作用下,产生的有毒气体的主要成分是()。

A.臭氧

B.氮氧化物

C.一氧化碳

题型:单项选择题

使用机械手在抓、运轮胎、轮辋时要()对称抓紧,防止轮胎、轮辋脱落。

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