共有n辆车，则能确定人数.（1）若每辆20座，辆车未坐满.（2）若每辆12座，则少10个座.
A.条件（1）充分，但条件（2）不充分.
B.条件（2）充分，但条件（1）不充分.
C.条件（1）和（2）单独都不充分，但条件（1）和（2）联合起来充分.
D.条件（1）充分，条件（2）也充分.
E.条件（1）和（2）单独都不充分，条件（1）和（2）联合起来也不充分.

小东在玩“勇士大战”游戏,进入第二关时,界面出现四个选项。第一个是“选择任意选项都需要支付游戏币”,第二个选项是“选择本项后可以得到额外游戏奖励”,第三个选项是“选择本项后游戏不会进行下去”,第四个选项是“选择某个选项不需要支付游戏币”。如果四个选项中的陈述只有一句为真,则以下哪项一定为真?
A.选择任意选项都需要支付游戏币。
B.选择任意选项都不需要支付游戏币。
C.选择任意选项都不能得到额外游戏奖励。
D.选择第二个选项后可以得到额外游戏奖励。
E.选择第三个选项后游戏能继续进行下去。

Text 4 Eva Ullmann took her master's degree in 2002 0n the part that humour has to play in psychotherapy,and became hooked on the subject.In 2005 she founded the German Insiitute for Humour in Leipzig.It is dedicated to"the combination of seriousness and humour".She offers lectures,seminars and personal coaching to managers,from small firms tO such corporate giants as Deutsche Bank and Telekom.Her latest project is to help train medical studenis and doctors.There is nothing peculiarly German about humour training.It was John Morreall,an American,who showed that humour is a market segment in the ever-expanding American genre of self-help.In the past two decades,humour has gone global.An Intemational Humour Congress was held in Amsterdam in 2000.And yet Cermans know that the rest of the world considers them to be at a particular disadvantage.The issue is not comedy.of which Germany has plenty.The late Vicco von Biilow,alias Loriot,delighied the elite wiLh his mockery of German senousness and stiffness.Rhenish,Swabian and other regional flavours thrive-Gerhard Polt,a bad-tempered Bavarian,now 72,is a Shakespeare among Lhem.There is lowbrow talent ioo,including OLto Waalkes,a Frisian buffoon.Most of this,however,is as foreigners always suspected:more embanassing Lhan funny.Germans can often be observed laughing,loudly.And they try hard."They cannot produce good humour,but they can consume it,"says James Parsons,an English man teaching business English in Leipzig.He once rented a theatre and got students,including Mrs Ullmann,to act out Monty Python skits,which they did wiLh enthusiasm.The trouble,he says,is that whereas the English wait deadpan for the penny to drop,Germans invariably explain their punchline.At a deeper level,the problem has nothing to do with jokes.What is missing is the series of irony,overstatement and understatement in workaday conversations.Immigrants in Germany share soul-crushing stories of atlempting a non-literal turn of phrase,to evoke a hoffified expression in their Gennan friends and a detailed explanaiion of the literal meaning,followed by a retreat into awkward politeness.Irony is not on the curriculum in Mrs Ullmann's classes.Instead she focuses mostly on the bas-ics of humorous spontaneiLy and surprise.Demand is strong,she says.It is a typical German answer to a shortcoming:work harder at it.
James Parsons seems to believe that Germans____
A.can be easily amused
B.might be excellent actors
C.are enthusiastic about plays
D.might pretend to be amused

若（2x+1）n展开式中x2项的系数与x项的系数之比为5:1,则n=
A.4
B.6
C.7
D.8
E.9

Text 1"The love of money",St Paul memorably wrote to his protege Timothy,"is the root of all evil.""All"may be putting it a bit strongly,but dozens of psychological studies have indeed shown that people primed to think about money before an experiment are more likely to lie,cheat and steal during the course of that experiment.Another well-known aphorism,ascribed to Benjamin Franklin,is"time is money".If true,that suggests a syllogism:that the love of time is a root of evil,too.But a paperjust published in Psychological Science by Francesca Gino of Harvard and Cassie Mogilner of the University of Pennsylvania suggests precisely the opposite.Dr Gino and Dr Mogilner asked a group of volunteers to do a scries of what appeared to be aptitude tests.As is ofien the case in such experiments,though,what the voiunteers were told.and what the truth was,were rather different things.In the first test they were asked to make,within three minutes,as many coherent sentences as they could out of a set ofwords they had been presented with.What they were not told was that each of them had been assigned to one of three groups.Some volunteers'word sets were seeded with ones associated with money,such as"dollars","financing"and"spend".Some were seeded with words associated with time（eg,"clock",/'hours","moment"）.And some were seeded with neither.Thus unknowingly primed,the volunteers were ready for the second test.This was mathematical.They were given a sheet of paper with 20 matrices which each contained 12 numbers.two of which added up to ten（for example,3.81 and 6.19）.They had to write down,on a separate answer sheet,how many of these pairs they could manage to find in five minutes.They were also given a packet ofmoney and told they could reward themselves with a dollar for each pair they discovered.This led Dr Gino and Dr Mogilner to suspect that self-reflection played a part in controlling uncthical behaviour during the test.They therefore conducted a third test in which,for half the volunteers,there was a mirror in the cubicle they were sitting in when doing the experiment.Volunteers primed to think about money cheated 39%of the time when a mirror was present but 67%when it was not.Those primed to think about time cheated 32%of the time in the presence of the mirror and 36%in its absence-results that are statistically indistinguishable.Finally,a fourth experiment asked primed volunteers to fill in a questionnaire before tackling the matrix.In among"filler"questions intended to disguise what was happening this asked them to rate how they felt about self-reflective statements like,"Right now,1 am thinking about who I am as a person."As in the previous tests,those primed with money words cheated more ofien than those primed with neutral words and far more ofien than those primed with time words.But whether someone cheated was also related to how strongly he felt about the self-reflective statements presented to him in the questionnaire.It seems,then,that thinking about time has the opposite effect on people from thinking about money.It makes them more honest than normal,rather than less so.Moreover,the more reflective they are,the more honest they become.There must be an aphorism in that.
The author's attitude towards the conclusion of the experiment is——.
A.disapproval
B.suspicious
C.supportive
D.certain

已知线段AB的长为12,点A的坐标是（一4,8）,点B横、纵坐标相等,则点B的坐标为（）
A.（-4,-4）
B.（8,8）
C.（4,4）或（8,8）
D.（-4,-4）或（8,8）
E.（4,4）或（-8,-8）