相关试题
共用题干
第三篇
The Iceman
On a September day in 1991,two Germans were climbing the mountains between Austria and Italy. High
up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet or 3,200
meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice had
melted more than usual and so the body had come to the surface.
It was lying face downward. The skeleton（骨架）was in perfect condition, except for a wound in the
head.There was still skin on the bones and the remains of some clothes.The hands were still holding the
wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of
gloves made of tree bark（树皮）and a holder for arrows.
Who was this man?How and when had he died?Everybody had a different answer to these questions.
Some people thought that it was from this century,perhaps the body of a soldier who died in World War I,
since several soldiers had already been found in the area. A Swiss woman believed it might be her father,
who had died in those mountains twenty years before and whose body had never been found.The scientists
who rushed to look at the body thought it was probably much older,maybe even a thousand years old.
With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old.
Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probably
a hunter who had died in an accident in the high mountains.More recent evidence,however,tells a different
story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin,
but it caused internal damage and bleeding. He almost certainly died from this wound, and not from the
wound on the back of his head.This means that he was probably in some kind of a battle.It might have been
part of a larger war,or he might have beenl fighting bandits.He might even have been a bandit himself.
By studying his clothes and tools,scientists have already learned a great deal from the iceman about the
times he lived in.we may never know the full story of how he died,but he has given us important clues to the
history of those distant times.
What can be inferred from Paragraph 2?
A:The iceman could have died from the wound in the head.
B:The iceman was struck dead from behind.
C:The iceman was killed while working.
D:The iceman lived a poor life.
Traffic reaches its rush hour between 8:00 and 9:00 in the morning.
A:border
B: goal
C: peak
D: level
I have little information as regards her fitness for the post.
A: about
B: at
C: with
D: from
共用题干
第三篇
Pool Watch
Swimmers can drown in busy swimming pools when lifeguards fail to notice that they are
in trouble.A report says that on average 15 people drown in British pools each year,but
many more suffer major injury after getting into difficulties.Now a French company has
developed an artificial intelligence system called Poseidon that sounds the alarm when it
sees someone in danger of drowning.
When a swimmer sinks towards the bottom of the pool,the new system sends an alarm
signal to a poolside monitoring station and a lifeguard's pager（呼机）.In trials at a pool in
Ancenis,near Nantes,it saved a life within just a few months,says Alistair McQuade,a
spokesman for its maker,Poseidon Technologies.
Poseidon keeps watch through a network of underwater and overhead video cameras.
Al software analyses the images to work out swimmers' trajectories（轨迹）.To do this
reliably,it has to tell the difference between a swimmer and the shadow of someone being
cast onto the bottom or side of the pool.
It does the same with an image from another camera viewing the shape from a different
angle.If the two projections are in the same position,the shape is identified as a shadow
and is ignored.But if they are different,the shape is a swimmer and so the system follows
its trajectory.
To pick out potential drowning victims,anyone in the water who starts to descend
slowly is added to the software's"pre-alert"（预先警戒）list,says McQuade. Swimmers
who then stay immobile on the pool bottom for 5 seconds or more are considered in danger
of drowning.Poseidon double-checks that the image really is of a swimmer,not a shadow,
by seeing whether it obscures（使模糊）the pool's floor texture when viewed from overhead.
If so,it alerts the lifeguard,showing the swimmer's location on a poolside screen.
The first full-scale Poseidon system will be officially opened next week at a pool in High
Wycombe,Buckinghamshire.One man who is impressed with the idea is Travor Baylis,
inventor of the clockwork（时钟装置）radio. Baylis runs a company that installs swimming
pools-and he was once an underwater escapologist（脱身杂技演员）with a circus（马
戏团）."I say full marks to them if this works and can save lives,"he says.
To save a life,Al software must be able to
A:descend in the water.
B:videotape every movement.
C:distinguish between a swimmer and a shadow.
D:save a life within a few months.
共用题干
第二篇
The American Industry
A history of long and effortless success can be a dreadful handicap,but if properly handled,it may become a driving force.When the United States entered just such a glowing period after the end of the Second World War,it had a market eight times larger than any competitor,giving its industries unparalleled economies of scale.Its scientists were the world's best,its workers the most skilled.America and Americans were prosperous beyond the dreams of the Europeans and Asians whose economies the war had destroyed.
It was inevitable that this primacy should have narrowed as other countries grew richer. Just as inevitably,the retreat from predominance proved painful.By the mid-1980s Americans had found themselves at a loss over their fading industrial competitiveness.Some huge American industries, such as consumer electronics,had shrunk or vanished in the face of foreign competition.By 1987 there was only one American television maker left,Zenith.(Now there is none:Zenith was bought by South Korea's LG Electronics in July.)Foreign-made cars and textiles were sweeping into the domestic market. America's machine-tool industry was on the ropes.For a while it looked as though the making of semiconductors,which America had which sat at the heart of the new computer age, was going to be the next casualty.
All of this caused a crisis of confidence.Americans stopped taking prosperity for granted.They began to believe that their way of doing business was failing,and that their incomes would therefore shortly begin to fall as well. The mid-1980s brought one inquiry after another into the causes of America's industrial decline.Their sometimes sensational findings were filled with warnings about the growing competition from overseas.
How things have changed!In 1995 the United States can look back on five years of solid growth while Japan has been struggling. Few Americans attribute this solely to such obvious causes as a devalued dollar or the turning of the business cycle.Self-doubt has yielded to blind pride."American industry has changed its structure,has gone on a diet,has learnt to be more quick-witted,"according to Richard Cavanagh,executive dean of Harvard's Kennedy School of Government,"It makes me proud to be an American just to see how our businesses are improving their productivity,"says Stephen Moore of the Cato Institute,a think-tank in Washington,DC.And William Sahlman of the Harvard Business School believes that people will look back on this period as"a golden age of business management in the United States."
The loss of U.S.predominance in the world economy in the 1980s is manifested in the fact that the American______.
A:TV industry had withdrawn to its domestic market
B:semiconductor industry had been taken over by foreign enterprises
C:machine-tool industry had collapsed after suicidal actions
D:auto industry had lost part of its domestic market
最新解答的试题
付款人在进行付款时无（）
A.形式审查义务
B.实质审查义务
C.附带审查义务
D.票据外有关事项的审查义务
根据《公司法》的规定,有限责任公司下列人员中,可以提议召开股东会临时会议的是()。
A.总经理B.人数过半数的股东C.监事会主席D.人数为半数的董事
关于股份有限公司中的监事会，下列说法错误的是()
A.监事会负责提议聘请或更换外部审计机构B.监事会主席和副主席由全体监事过半数选举产生C.监事会中的职工代表的比例不得低于三分之一D.监事会应至少每6个月召开一次会议
阿里巴巴提供了“企业名称认证”“企业身份认证”不同种类的认证,可以根据自身的
