沉降速度

如图所示xOy平面处于一匀强电场中，场强大小为E，方向与y轴45^o角．现有一质量为m、电量大小为q的离子从坐标原点以速度v_o射出，方向与x轴夹45^o角．经一段时间离子穿过x轴，离子的重力不计．求：

小题1:离子的带电性质，并画出离子大致的运动轨迹．

小题2:离子穿过x轴时的位置坐标及在该处的速度大小．

具有凉血止血功用的方剂是（）

A.桃核承气汤

B.大承气汤

C.增液承气汤

D.十全大补汤

E.十灰散

用一句话概括下面材料的主要信息。不超过15个字。（4分）

所谓流动性短缺危机是指金融机构因信贷紧缩导致流动资金严重不足。流动性短缺危机已经波及到了金融体系之外，首当其冲的则是美国的中小企业。在加利福尼亚州经营果园的农场主凯瑟琳日前接受媒体采访时说，由于信贷紧缩，她扩大生意的计划一再搁浅。她抱怨说，三年前开始创业时，她很轻松地借到了５０万美元的贷款，“如今当自己的产品已经小有名气之后，却没有一家银行愿意回她的电话”。

答：

At times we all get angry when we are driving. It might be because we are stuck in a traffic jam or stuck behind a very slow driver. It might be because we think another driver has done something very stupid and dangerous. Whatever the reason, it seems that getting angry in a car is something which happens more and more often and there is now a special term for it “road rage”. Some experts even think that road rage is a kind of mental illness! How can we recognize this “illness” of road rage?

There are two kinds of road rage: aggressive driving and aggressive reactions to the way other people are driving. Aggressive driving can take different forms:

●Driving much faster than the speed limit.

●Increasing your speed very quickly.

●Driving very close behind the car in front and sounding the horn or flashing the headlights.

●Changing lanes very suddenly and blocking another car.

●Moving into a parking space where another car is trying to park.

There are also different reactions to the way other people are driving. These include:

●Making rude signs at people.

●Shouting at people and threatening them.

●Deliberately driving into another person’s car.

●Hitting somebody.

●Using a weapon such as a baseball bat, or even a gun or a knife.

Road rage is certainly not a joke. There have been incidents of road rage which have led to serious injuries and even murder.

Experts think that one reason for road rage is that films show a lot of examples of fast and aggressive driving such as car chases where this kind of driving seems to be positive.

Experts also think that the punishments for dangerous driving are not serious enough.

Experience shows that driving problems can be controlled, but it takes a long time. In the UK in the last 30 years, the police have been quite successful in reducing the number of people who drink and drive. They are now working to stop people using mobile phones when they are driving. Let’s hope they can have the same success with the road rage.

小题1:Which of the following statements does NOT describe aggressive     driving?

A．Driving much faster than the speed limit.

B．Drinking and driving

C．Moving into a parking space where another car is trying to park.

D．Changing lanes very suddenly and blocking another car.小题2:Road rage happens possibly because______.

A．the drivers are drunk

B．it won’t cause serious injuries or death

C．we’re in a fast-changing society

D．the punishments are not serious enough小题3:What’s the tone（语气）of the last paragraph?

A．Sad

B．Cold

C． Optimistic

D．Exciting

入库货物登记的主要内容有（）。

A.货物名称、规格、数量、件数、金额

B.累计数或结存数

C.存货人或提货人

D.批次、金额

E.注明货位号或运输工具、接（发）货经办人