装置操作压力和氢分压成()。A、正比 B、反比 C、积分关系 D、不能确定

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问题:

装置操作压力和氢分压成()。

A、正比

B、反比

C、积分关系

D、不能确定

考点:医学三基(医师)高级汽油加氢装置操作工考试高级汽油加氢装置操作工考试题库
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GSM中,主频C0的TS0映射的信道包括()

A.BCCH

B.FCCH

C.PCH

D.AGCH

E.TCH

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室内装饰设计师在工作中要不断适应各种变化,深入生活,从地域性、特殊性、()可持续性等几方面入手,搞好设计前期的社会调研工作等。

A.全球性

B.流行性

C.地域性

D.国际性

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Marriage, and its many ups and downs, still exercises a powerful hold over newspapers, magazines and the airwaves. Nearly 23m Americans watched Prince William being joined in holy marriage to Kate Middleton. Millions more have indulged in the break-up of Arnold Schwarzenegger’s marriage after revelations that he fathered a son with a maid.

Less delightful are revelations about the sorry state of marriage across the United States. Data from the Census Bureau show that married couples, for the first time, now make up less than half of all households.

The iconic American family, with mom, dad and kids under one roof, is fading. In every state the numbers of unmarried couples, childless households and single-person households are growing faster than those comprised of married people with children, finds the 2010 census. And the trend has a potent class dimension. Traditional marriage has evolved from a near-universal ritual to a luxury for the educated and affluent.

There barely was a marriage gap in 1960: only four percentage points separated the wedded ways of college and high-school graduates(76% versus 72%). The gap has since widened to 16 percentage points, according to the Pew Research Centre.

"Marriage has become much more selective, and that’s why the divorce rate has come down," said Bradford Wilcox, director of the National Marriage Project at the University of Virginia in Charlottesville. The project found that divorce rates for couples with college degrees are only a third as high as for those with a high-school degree.

Americans with a high-school degree or less tell researchers they would like to marry, but do not believe they can afford it. Instead, they raise children out of wedlock. Only 6% of children born to college-educated mothers were born outside marriage, according to the National Marriage Project. That compares with 44% of babies born to mothers whose education ended with high school.

"Less marriage means less income and more poverty," reckons Isabel Sawhill, a senior fellow at the Brookings Institution. She and other researchers have linked as much as half of the income inequality in America to changes in family composition: single-parent families (mostly those with a high-school degree or less) are getting poorer while married couples (with educations and dual incomes) are increasingly well-off. "This is a striking gap that is not well understood by the public," she says.

Do not expect the Democratic Party, however, to make an issue of the marriage gap in next year’s elections. Unmarried women voted overwhelmingly for Barack Obama. "You don’t want to suggest to someone who isn’t married and has children that they should be married," says Ms Sawhill. "That is a scorn on their lifestyle.

According to the text, traditional marriage ()

A. is no longer considered holy and meaningful

B. is doomed to be replaced by new forms

C. tends to be kept by the wealthy and cultivated

D. enables couples to be loyal to each other

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项目信息门户,下列说法正确的是( )。

A.项目信息门户是一种项目管理信息系统(PMI

B.项目信息门户是一种企业管理信息系统(MI

C.项目信息门户主要用于项目法人的人、财、物、产、供、销的管理

D.项目信息门户可以为一个建设工程的各参与方服务

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下列有语病的一项是( )

A.近几年来,我市大力实施“绿亮清”工程,建成了一批独具特色的绿地和广场

B.国家南水北调东线工程的启动,为济宁的发展带来千载难逢的大好机遇

C.举办一次盛大的奥运会,是一个国家实力的显示

D.全面实施素质教育,就必须下决心减轻中小学生的课业负担

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