试验室拌合混凝土时,材料量称量精度为±1%的是()A、水 B、掺合料 C、骨料 D、

题型:单项选择题

问题:

试验室拌合混凝土时,材料量称量精度为±1%的是()

A、水

B、掺合料

C、骨料

D、外加剂

考点:材料科学混凝土混凝土题库
题型:单项选择题

It has become the modern substitute of glancing at your watch—the furtive(偷偷的)look at a phone screen to check for new messages or have a quick look at Facebook.Researchers have now found why we often feel such a strong urge to glance at our handset.Using your mobile,they say,is easily affected by other people.

A University of Michigan team say people are twice as likely to pull out their phones to check their messages or emails if they’re with someone who has just done the same.It also found that females were more likely to use their mobile than men because it was more ‘consistent’ with the daily lives of women.

The team watched students in dining halls and coffee shops around campus,observing pairs of students sitting at tables for as long as 20 minutes and recorded their cellphone use at 1 0-second intervals.

“What we found most interesting was just how often people were using their mobile phones,” Dr Daniel Kruger, the study’s co-author, said.“Every person we observed used his/her phone at least once while one woman was on hers about half of the time.You may see others checking their incoming messages and be encouraged to check your own.’’

Overall,the students used their cellphones in an average of 24 percent,the researchers found.But they were significantly more likely to use their phones(39.5 percent)when their companion had just done so in the previous 10-second interval than without the social clue,the researchers said,adding that this behavior was often repeated.

Cell phones create an alternative way for one’s attention and may both promote and interrupt ongoing social activities,the researchers wrote.

Kruger believes this pattern could be related to the effects of social acceptance and rejection.If one person in a pair engages in another conversation through their phone,his or her companion may feel rejected.That companion then might be forced to connect with others from outside so as not to feel left out.

小题1:People’s strong desire to check their messages partly results from ___________.

A.the modern substitute of their watches

B.the new messages of their handsets

C.the same behavior of other people

D.the update service of Facebook小题2:Why do women use their phones more frequently?

A.They want to show off their modern mobiles.

B.They are more likely to be influenced by others.

C.They try to set a good example for others.

D.They desire to meet the demands of society.小题3:How might one feel when his companion is busy checking messages?

A.Relaxed.

B.Ashamed.

C.Surprised.

D.Ignored.小题4: The underlined part“this behavior” in Paragraph 5 refers to _______________.

A.using the cellphones

B.receiving social clues

C.joining in activities

D.engaging in conversations小题5:Which of the following can be the best title of the passage?

A.Social Acceptance And Rejection

B.Females Use Mobiles More than Men

C.How Do People Check Messages?

D.Cellphone Use Is Spreading

题型:单项选择题

列人项目后评价年度计划的项目单位,应当在项目后评价年度计划下达后( )个月内,向国家发展和改革委员会报送项目自我总结评价报告。

A.1
B.2
C.3
D.6

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下列人员中哪个不能担任仲裁员()

A.那某,法学研究所研究员

B.葛某,曾担任审判员8年

C.田某,曾担任公务员10年

D.钮某,从事律师工作9年

题型:单项选择题

在居住区公共绿地中,绿化用地面积(含水面)不宜小于(),其他块状、带状公共绿地宽度不小于8m,面积不小于()。

题型:单项选择题

通井规的用途()。

A.清洗油管

B.测套管外径

C.判断井内套管状况

D.测套管接箍

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