What is the passage mainly about？（）

A．The Beijing Red Poppy Ladies Percussion.
B．A trend born--the 12 Girls Band.
C．How to succeed in musical world.
D．Bands that don’t have "a thing" are sure to die fast.

空气湿度的大小

空气中水蒸气分压力的大小

同温度下空气的饱和水蒸气压力的大小

湿球温度下饱和水蒸气压力和干球温度下水蒸气分压力之差的大小

Real policemen hardly recognize any resemblance (类同之处)between their lives and what they see on TV--if they ever get home in time. There are similarities, of course, but the cops(警官) don’t think much of them.

The first difference is that a policeman’s real life revolves round the law. Most of his training is in criminal law. He has to know exactly what actions are crimes and what evidence can be used to prove them in court. He has to know nearly as much law as a professional lawyer, and what is more, he has to apply it on his feet, in the dark and rain, running down an alley after someone he wants to talk to.

Little of his time is spent in chatting to scanty-clad ([穿衣不多的) ladies or in dramatic confrontations with desperate criminals. He will spend most of his working life typing millions of words on thousands of forms about hundreds of sad, unimportant people who are guilt or not--of stupid, petty crimes.

Accidents was caused; they don’t just happen. The reason may be easy to see: a shelf out of reach, a patch of ice on the road, an overloaded truck. But merely often than not there is a chain of events leading up to the misfortune—frustration, tiredness or just bad temper—that show what the accident really is, a sort of attack on oneself.

Road accidents, for example, happen frequently after a family quarrel, and we all know people who are accidents-prone, so often at odds with themselves and the world that they seem to cause accidents for themselves and others.

By definition, an accident is something you can not predict or avoid, and the idea which used to be current, that the majority of road accidents are caused by a minority of criminally careless drivers, is not supported by insurance statistics. These show that most accidents involve ordinary motorists in a moment of carelessness or thoughtlessness.

It is not always clear, either, what sort of conditions makes people more likely to have an accident. For instance, the law requires all factories to take safety precautions and most companies have safety committees to make sure the regulations are observed, but still, every day in Britain, some fifty thousand men and women are injured from work due to accidents. These accidents are largely the result of human error or misjudgment—noise and fatigue, boredom or worry are possible factors which contribute to this. Doctors who work in factories have found that those who drink too much, usually people who have a high anxiety level, run three times the normal risk of accidents at work.

剧列运动引起血红蛋白尿

新生儿溶血引起血红蛋白尿

急性尿毒症引起血红蛋白尿

6-磷酸葡萄糖脱氢酶缺陷引起血红蛋白尿

血型不合输血引起血红蛋白尿

弗洛伊德的观点不同于亚当.斯密

弗洛伊德希望通过理解人的本性来揭开心灵的秘密

弗洛伊德的愿望是好的，但他无法揭开人性的秘密

弗洛伊德精神分析理论是用来揭示感性与理性的关系的

如图所示多杆机构中，机构自由度的数目是（）。

正常产程

潜伏期延长

活跃期延长

活跃期停滞

第二产程停滞

增加

不变

减小

先增后减

空气湿度的大小

空气中水蒸气分压力的大小

同温度下空气的饱和水蒸气压力的大小

湿球温度下饱和水蒸气压力和干球温度下水蒸气分压力之差的大小

Real policemen hardly recognize any resemblance (类同之处)between their lives and what they see on TV--if they ever get home in time. There are similarities, of course, but the cops(警官) don’t think much of them.

The first difference is that a policeman’s real life revolves round the law. Most of his training is in criminal law. He has to know exactly what actions are crimes and what evidence can be used to prove them in court. He has to know nearly as much law as a professional lawyer, and what is more, he has to apply it on his feet, in the dark and rain, running down an alley after someone he wants to talk to.

Little of his time is spent in chatting to scanty-clad ([穿衣不多的) ladies or in dramatic confrontations with desperate criminals. He will spend most of his working life typing millions of words on thousands of forms about hundreds of sad, unimportant people who are guilt or not--of stupid, petty crimes.

Accidents was caused; they don’t just happen. The reason may be easy to see: a shelf out of reach, a patch of ice on the road, an overloaded truck. But merely often than not there is a chain of events leading up to the misfortune—frustration, tiredness or just bad temper—that show what the accident really is, a sort of attack on oneself.

Road accidents, for example, happen frequently after a family quarrel, and we all know people who are accidents-prone, so often at odds with themselves and the world that they seem to cause accidents for themselves and others.

By definition, an accident is something you can not predict or avoid, and the idea which used to be current, that the majority of road accidents are caused by a minority of criminally careless drivers, is not supported by insurance statistics. These show that most accidents involve ordinary motorists in a moment of carelessness or thoughtlessness.

It is not always clear, either, what sort of conditions makes people more likely to have an accident. For instance, the law requires all factories to take safety precautions and most companies have safety committees to make sure the regulations are observed, but still, every day in Britain, some fifty thousand men and women are injured from work due to accidents. These accidents are largely the result of human error or misjudgment—noise and fatigue, boredom or worry are possible factors which contribute to this. Doctors who work in factories have found that those who drink too much, usually people who have a high anxiety level, run three times the normal risk of accidents at work.

剧列运动引起血红蛋白尿

新生儿溶血引起血红蛋白尿

急性尿毒症引起血红蛋白尿

6-磷酸葡萄糖脱氢酶缺陷引起血红蛋白尿

血型不合输血引起血红蛋白尿

弗洛伊德的观点不同于亚当.斯密

弗洛伊德希望通过理解人的本性来揭开心灵的秘密

弗洛伊德的愿望是好的，但他无法揭开人性的秘密

弗洛伊德精神分析理论是用来揭示感性与理性的关系的

如图所示多杆机构中，机构自由度的数目是（）。

正常产程

潜伏期延长

活跃期延长

活跃期停滞

第二产程停滞

增加

不变

减小

先增后减