初步核实的时限为()。A、一个月B、两个月C、三个月D、六个月

题型:单项选择题

问题:

初步核实的时限为()。

A、一个月

B、两个月

C、三个月

D、六个月

考点:技术监督质检职业技能考试纪检监察系统持证上岗纪检监察系统持证上岗题库
题型:单项选择题

小华总结两年来所做的物理探究实验发现:

甲 探究摩擦力与什么因素有关  乙 探究动能的大小与什么因素有关

(1)当要研究的物理量不易直接测量时,都要想办法把它们的大小间接表示出来.

如:甲实验让木块在水平面上做______运动,读取弹簧测力计上的示数间接知道摩擦力的大小;乙实验中小球动能的大小是通过观察比较物块B______反映出来的.

(2)当要研究的物理量与多个因素有关时,都要采用______法.

如:甲实验研究压力与滑动摩擦力的关系时,改变压力大小,保持接触面粗糙程度不变;乙实验研究速度与动能之间的关系时,使用同一小球从不同高度落下.

题型:单项选择题

Passage Four

Global climate change, often seen as a process stretching over thousands of years, could in fact occur abruptly and unexpectedly-quickly pushing up temperatures by as much as 18 degrees Fahrenheit and wreaking havoc(大破坏,浩劫) on human society, scientists warned on Wednesday.
"Climate change is not always smooth. Sometimes it is abrupt," said Richard Alley, a climate expert at Pennsylvania State University and lead author of a new National Academy of Sciences report on the threat of rapid climatic shifts.
"If you have a very large, abrupt change, a lot of people and a lot of ecosystems are going to notice," he said."The bigger and faster it is, the harder it will be to deal with."
The new National Academy of Sciences report, released this week, warns that gradual global warming coupled with other human impacts on the environment could "trip the switch" for sudden climate change.
At the American Geophysical Union meeting on Wednesday, Alley and other environmental scientists said the geological evidence indicated that such rapid climate shifts had occurred frequently in the past—moving temperatures drastically in the space of just a few decades.
"This can happen in less than a human generation, and then it will persist for thousands of years," said David Battisti, an atmospheric scientist at the University of Washington.
The most immediate dangers posed by abrupt climate change range are devastating droughts and floods which could seriously affect both water supply and agriculture across vast stretches of the planet.
Longer term impacts could include changes in the basic systems which determine regional global temperatures. Scientists believe that the Gulf Stream, a current (水流) of warm Atlantic water which now keeps much of Northern Europe temperate, could theoretically reverse direction if enough cool fresh water runs into the north Atlantic from melting ice, a change that would quickly impact European weather.

According to the National Academy of Science report, sudden climate change could be triggered (触发) by______.

A.geological shifts

B.human impacts on the environment

C.natural disasters

D.long-term droughts

题型:单项选择题

重空用户领入和上缴交易的发起者是()

A.都是柜员

B.库管员与柜员

C.柜员与库管员

D.都是库管员

题型:单项选择题

足球以1.0m/s的速度水平飞向墙壁,碰到墙壁经0.1s后以1.0m/s的速度沿同一直线反弹回来,足球在与墙壁碰撞过程中()

A.平均加速度的大小为2m/s2

B.平均加速度的大小为20m/s2

C.平均加速度的大小为零

D.足球碰壁前后速度相同,速度没有变化

题型:单项选择题

在竣工结算款的支付中,发包人应在收到承包人提交竣工结算款支付申请后()天内予以核实,在签发竣工结算款支付证书后()天内进行支付。

A.7、7

B.7、14

C.14、14

D.14、56

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