桥涵过渡段填筑施工时,应选择良好填料,采用合适压实机械进行( )碾压。 A.重型 B

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问题:

桥涵过渡段填筑施工时,应选择良好填料,采用合适压实机械进行( )碾压。

A.重型

B.薄层

C.常规

D.减弱

考点:一级建造师铁路工程一级建造师铁路工程管理与实务真题2006年
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方程
x
+
y
=
1998
的整数解有(  )组.
A.无数B.4C.2D.0
题型:单项选择题

MA(移动平均线)的特点包括( )。

A.稳定性

B.助跌助涨性

C.追踪趋势

D.支撑线和压力线的特性

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随着宏观经济调控政策的逐步落实,我国经济增速会适度放缓,对石油天然气资源的需求有所减少,供求矛盾在一定程度上将得到缓解。根据国际能源署的最新预测,今年我国原油产量将达1.75亿吨,比去年增长1%,而原油消费量将有可能突破3亿吨,比去年增长12%左右;进口将会超过1亿吨,有可能接近1.2亿吨,比去年增长30%左右。根据这段文字,我们可以知道()。

A.我国对进口原油的依赖加大

B.我国原油供给紧张

C. 我国原油消费主要靠进口

D. 我国对能源的需求会越来越少

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社保基金的来源渠道()

A、企业缴纳

B、劳动者个人缴纳

C、国家财政基金

D、基金投资收益

题型:单项选择题

High school dropouts earn an average of $9,000 less per year than graduates. Now a new study dispels a common belief why they quit. It’s much more basic than flunking out.
Society tends to think of high school dropouts as kids who just can’t cut it. They are lazy, and perhaps not too bright. So researchers were surprised when they asked more than 450 kids who quit school about why they left.
"The vast majority actually had passing grades and they were confident that they could have graduated from high school. " John Bridgeland, the executive researcher said. About 1million teens leave school each year. Only about half of African American and Hispanic student will receive a diploma, and actually all dropouts come to regret their decision. So, if failing grades don’t explain why these kids quit, what does Again, John Bridgeland: "The most dependable finding was that they were bored. " "They found classes uninteresting; they weren’t inspired or motivated. They didn’t see any direct connection between what they were learning in the classroom to their own lives, or to their career aspirations. "
The study found that most teens who do drop out wait until they turn sixteen, which happens to be the age at which most states allow students to quit. In the US, only one state, New Mexico, has a law requiring teenagers to stay in high school until they graduate. Only four states: California, Tennessee, Texas and Utah, plus the District of Columbia, require school attendance until age 18, no exceptions, another researcher, says raising the compulsory attendance age may be one way to keep more kids in school.
"As these dropouts look hack, they realize they’ve made a mistake. And anything that sort of gives these people an extra push to stick it out and it through to the end, is probably helpful measure. "
New Hampshire may be the next state to raise its school attendance age to 18. But critics say that forcing the students unwilling to continue their studies to stay in school misses the point—the need for reform. It’s been called for to reinvent high school education to make it more challenging and relevant, and to ensure that kids who do stick it out receive a diploma that actually means something.

According to the passage, which state has a law requiring school attendance until they graduate

A.New Hampshire
B.Utah
C.New Mexico
D.The District of Columbia

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