北京时间2011年9月29日21时16分3秒,天宫一号在酒泉卫星发射中心发 射升

题型:选择题

问题:

北京时间2011年9月29日21时16分3秒,天宫一号在酒泉卫星发射中心发

射升空,设计在轨寿命两年。据此回答问题

小题1:“天宫一号”选择在酒泉发射是因为这里(    )

A.海拔高,接近卫星所在的大气层

B.纬度低,接近地球同步轨道

C.气候干旱,大气的透明度高

D.设备先进,科技力量雄厚小题2:天宫一号成功发射时,国际标准时间(中时区的区时)为(    )

A.9月29日5时16分3秒 

B.9月29日13时16分3秒

C.9月29日21时16分3秒 

D.9月30日5时16分3秒

考点:地球运动的一般特点地球自转的地理意义地球公转的地理意义
题型:选择题

栝蒌瞿麦丸与猪苓汤证均有口渴,其机理有何不同?

题型:选择题

Do you know how it is when you see someone yawn and you start yawning too? Or how hard it is to be among people laughing and not laugh yourself? Well, apparently it's because we have mirror neurons (神经元)in our brains.

Put simply, the existence of mirror neurons suggests that every time we see someone else do something, our brains imitate (模仿)it,whether or not we actually perform the same action. This explains a great deal about how we learn to smile, talk, walk, dance or play sports. But the idea goes further: mirror neurons not only appear to explain physical actions y they also tell us that there is a biological basis for the way we understand other people.

Mirror neurons can undoubtedly be found all over our brains, but especially in the areas which relate to our ability to use languages, and to understand how other people feel. Researchers have found that mirror neurons relate strongly to language. A group of researchers discovered that if they gave people sentences to listen to ( for example :"The hand took hold of the ball" ) , the same mirror neurons were triggered as when the action was actually performed (in this example, actually taking hold of a ball).

Any problems with mirror neurons may well result in problems with behavior. Much researeh suggests that people with social and behavioral problems have mirror neurons which are not fully functioning. However, it is not yet known exactly how these discoveries might help find treatments for social disorders.

Research into mirror neurons seems to provide us with ever more information concerning how humans behave and interact(互动).Indeed, it may turn out to be the equivalent (相等物)for ncurosciencc of what Einstein's theory of relativity was for physics. And the next time you feel the urge to cough in the cinema when someone else does--well,perhaps you'll understand why.

小题1:Mirror neurons can explain         .

A.why we cry when we are hurt

B.why we cough when we suffer from a cold

C.why we smile when we see someone else smile

D.why we yawn when we see someone else stay up late小题2:The underlined word "triggered" in the third paragraph probably means “  

A.set off

B.cut off

C.built up

D.broken up小题3:We can learn from the passage that mirror neurons  .

A.relate to human behavior and interaction

B.control human physical actions and feelings

C.result in bad behavior and social disorders

D.determine our knowledge and language abilities小题4:What is the passage mainly about?

A.Ways to find mirror neurons.

B.Problems of mirror neurons.

C.Existence of mirror neurons.

D.Functions of mirror neurons.

题型:选择题

(1)实验测得,5g甲醇在氧气中充分燃烧生成二氧化碳气体和液态水时释放出113.5kJ的热量,试写出甲醇燃烧的热化学方程式:                         

(2)已知反应N2(g)+3H2(g)2NH3(g) △H=a kJ/mol。试根据表中所列键能数据估算a的数值:        

化学键H—HN—HN=N
键能(kJ/mol)436391945
(3)依据盖斯定律可以对某些难以通过实验直接测定的化学反应的焓变进行推算。

已知:

C(s,石墨)+O2(g)   CO2(g)  △H1=-393.5kJ?mol1                                                

2H2(g)+O2(g)   2H2O(1)  △H2=-571.6kJ?mol1                                                         

2C2H2(g)+5O2(g)   4CO2(g)+2H2O(l)  △H3 =-2599kJ?mol1                      

根据盖斯定律,计算298K时由C(s,石墨)和H2(g)生成1mol C2H2(g)反应的焓变:                        

题型:选择题

中世纪的时候鼹鼠是否有眼睛()

A、不清楚

B、有一只眼睛

C、有眼睛

D、没眼睛

题型:选择题

一台并网发电的同步发电机,若转子励磁绕组突然开路,此时原动机输入来不及调节,此时转子()。

A.加速

B.减速

C.保持原来的转速

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