装载货物应正确选择车辆,遵守()及有关规定。

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问题:

装载货物应正确选择车辆,遵守()及有关规定。

考点:货运从业资格考试高级货运员高级货运员题库
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根据国家相关法律规定,下列关于投标保证金的说法正确的是______。

A.投标保证金只能以保函形式提交
B.投标保证金的保证范围可以由招标人在招标文件中规定
C.投标保证金自中标通知书到达中标人之日生效
D.投标保证金即定金

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诊断主动脉瓣关闭不全最重要的体征是()

A.周围血管征

B.主动脉瓣区叹息样舒张期杂音向心尖传导

C.主动脉瓣区第二心音减弱或者消失

D.心尖抬举样搏动

E.主动脉瓣区收缩期杂音

题型:填空题
抛物线y=
1
2
x2-6x+21的顶点坐标是______.
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设f(x)连续

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The day after news broke of a possible revolution in physics ——particles (粒子) moving faster than light ?a scientist leading the European experiment that made the discovery calmly explained it to a standing-room- only crowd at CERN.

The physicist, Dario Auterio, did not try to explain what the results might mean for the laws of physics, let alone the broader world.After an hour of technical talk, he simply said, "Therefore, we present to you today this difference, this unusualness."

But what unusualness it may be.From 2009 through 2011, the massive OPERA detector (探测器)buried in a mountain in Gran Sasso, Italy, recorded subatomic particles called neutrinos ( 中微子) arriving faster than light can move in an empty space.The neutrinos generated at CERN are hardly detectably early.If confirmed, the finding would throw more than a century of physics into disorder.

"If it's correct, it's phenomenal." said Rob Plunkett, a scientist at Fermilab, the Department of Energy physics laboratory in Illinois."We'd be looking at a whole new set of rules" for how the universe works.Those rules would bend, or possibly break, Albert Einstein's special theory of relativity, published in 1905.Basical at the time, the theory tied together space and time, matter and energy, and set a hard limit for the speed of light, later measured to be about 186, 000 miles per second.

No experiment in 106 years had broken that speed limit.Physicists expect strict study to follow, which OPERA and CERN scientists welcomed.

Fermilab operates a similar experiment, called MINOS, that shoots neutrinos from Illinois to an underground detector in Minnesota.In 2007, MINOS discovered a just detectable amount of faster than-light neutrinos, but the permissible difference of error was too big to "mention" , Plunkett said.

Fermilab scientists will reanalyze their data, which will take six to eight months.In 2013, the MINOS detector, now offline, will restart after an upgrade.It could then offer confirmation of the results.

小题1:Why are the European scientists not sure about the results of the experiment?

A.Because they are so unexpected.

B.Because the scientists do not believe them.

C.Because the scientists are careful and calm.

D.Because they are against the present law of physics.小题2:The underlined word " phenomenal" in the fourth paragraph has the closest meaning to          .

A.amazing

B.attractive

C.embarrassing

D.sensitive小题3:The best title for the passage may be _____.

A.Are the laws of physics in disorder?

B.Particles faster than light; Revolution or mistake?

C.Faster than light measurement: right or wrong?

D.Is Einstein's theory still right today?小题4:What may be discussed in the paragraphs to follow?

A.Different opinions about the experiment.

B.How Albert Einstein's theory developed.

C.The new rules for how the universe works.

D.How Fermilab scientists will reanalyze their data.

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