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[单选题]

A pair of cotton trousers ___ I now need badly.

A.is what

B.is which

C.are what

D.are which

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发布时间：2022-06-29

更多“A pair of cotton trousers ___ I now need badly.”相关的问题

第1题

要求定时器/计数器的运行控制完全由TR1、TRO确定或完全由INT0、INT1高、低电平控制时，其初始化编程应做何处理？

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第2题

棉秆（cotton stalk)是双子叶草本植物，属于半木质化原料。（)

此题为判断题(对，错)。

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第3题

对于下胫腓联合分离的诊断-查体，目前临床上常用的四种体格检查不包括（)

A.Cotton实验

B.外旋实验

C.Neer撞击实验

D.腓骨位移实验

E.挤压实验

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第4题

When two different forms are identical in very way except for one sound segment which

A.distinctive feature

B.minimal pair

C.complementary pair

D.perfect pair

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第5题

In communicative teaching, ______are expected to interact with other people, either in

the flash, through pair and group work, or in their writing.

A、Teachers

B、students

C、Teachers and students together

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第6题

- Can I help you？-（).

A、Yes, you can

B、I'd like a pair of sports shoes

C、Sorry, I don't know

D、NO. It's unnecessary

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第7题

Boxing for Fitness （健身)When it comes to boxing, most people think of two strong athlet

Boxing for Fitness (健身)

When it comes to boxing, most people think of two strong athletes in a ring trying to destroy each other with their fists. _____(1) It is a sport that people can get a great exercise from.

Boxing for fitness is fast becoming a popular way to exercise. It is easy to understand when you consider all the benefits of the sport. You will gain increased speed, skill and strength. _____(2) You will learn the basic attack skills and how to combine them effectively.

So you may wonder how I got started in boxing. I was already at the gym quite often, doing weight training. _____(3)But I was still soft around the midsection (上腹部).After a conversation with my boss at lunch one day he suggested I come to a boxing class with him. He is a very fit man in his 40s._____(4)And he told me all I needed to bring was a bottle of water and a towel.

If I have learnt anything from the experience, it is not to be afraid to try something new. No matter what your skill or fitness level is, boxing is good for you. The reason is that this exercise can be modified to suit you. _____(5)

(1)._____.

A、I was getting stronger.B、Boxing is considered too cruel.C、You will learn the proper way to control your feetD、He offered to lend me a pair of boxing gloves.E、All in all, boxing for fitness is a great way to work out.F、However, boxing for fitness is something altogether different

(2)._____.

(3)._____.

(4)._____.

(5)._____.

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第8题

In these days of technological triumphs，it is well to remind ourselves from time to ti

me that living mechanisms are often incomparably more efficient than their artificial imitations.There is no better illustration of this idea than the sonar (声纳) system of bats.Ounce for ounce，and watt for watt，it is billions of times more efficient and more sensitive than the radars and sonars contrived (发明) by man.Of course，the bats have had some 50 million years of evolution to refine their sonar.Their physiological mechanisms for echo location，based on all this accumulated experience，therefore merit our thorough study and analysis.To appreciate the precision of the bats‘ echo location，we must first consider the degree of their reliance upon it.Thanks to sonar，an insect-eating bat can get along perfectly well without eyesight.This was brilliantly demonstrated by an experiment performed in the late eighteenth

century by the Italian naturalist Lazzaro Spallanzani.He caught some bats in a bell tower，blinded them，and released them outdoors.Four of these blind bats were recaptured after they had found their way back to the bell tower，and on examining heir stomachs‘ contents，Spallanzani found that

they had been able to capture and gorge themselves with flying insects.We know from experiments that bats easily find insects in the dark of night ， even when the insects emit no sound that can be heard by human ears.A bat will catch hundreds of soft-bodied，silent-flying moths or gnats in a single hour.It will even detect and chase pebbles or cotton spitballs tossed into the air.

16.According to the author，the sonar system of bats is an example of the idea that.()

A.this is the age of technological triumphs

B.modern machines are inefficient

C.living mechanisms are often more efficient than man-made

machines

D.artificial imitations are always less efficient than living

mechanisms

17.The author suggests that the sonar system of bats ().

A.was at the height of its perfection 50 million years ago

B.is better than man-made sonar because it has had 50 million years to be refined

C.would have been discovered by man many years ago

D.is the same as it was 50 million years ago

18.The fact that“blind bats”will detect and chase cotton spitballs as well as insects is remarkable because.()

A.bats do not eat spitballs

B.cotton is harder to track

C.Spitballs make no sounds audible to human ears

D.there is purpose in the flight of insects

19.This passage was written to illustrate().

A.the deficiencies of man-made sonar

B.the dependence of man upon animals

C.that we are living in a machine age

D.that the sonar system of bats is remarkable

20.Which of the following is the main point of the passage？()

A.A bat will catch hundreds of gnats in a single hour

B.Here is a perfection in nature which sometimes cannot be matched by man‘s creative efforts

C.The phrase“blind as bat”is valid

D.director of NIH learned of the abuse

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第9题

假定有个消费者每月花费固定数额的收入在下述成对商品上:(1)玉米饼和拉丁舞;(2)玉米饼和炸土豆

假定有个消费者每月花费固定数额的收入在下述成对商品上:（1)玉米饼和拉丁舞;（2)玉米饼和炸土豆

假定有个消费者每月花费固定数额的收入在下述成对商品上:

(1)玉米饼和拉丁舞;

(2)玉米饼和炸土豆片;

(3)电影票和用咖啡豆磨制的咖啡;

(4)乘公共汽车出行和乘地铁出行。

假如上述成对商品中一种商品的价格上涨，说明这对每种商品需求的影响。在各对中，哪些可能是互补品？哪些可能是替代品？

Suppose that a consumer spends a fixed amount of income per month on the following pairs of goods:

a. tortilla chips and salsa

b. tortilla chips and potato chips

c. movie tickets and gourmet coffee

d. travel by bus and travel by subway

If the price of one of the goods increases, explain the effect on the quantity demanded of each of the goods. In each pair, which are likely to be complements and which are likely to be substitutes？

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第10题

The inventor of spectacles probably lived in the town of Paris, Italy, around 1286, a

nd was almost certainly a craftsman working in glass. But nobody knows his name. We only know this much about him because Friar Giordane preached a sermon one Wednesday morning in February 1306 at a church in Florence. "It’s not yet 20 years since there was found the art of making eye-glasses which make for good vision," said the Friar."One of the best arts and most necessary that the world has. So short a time is it since there was invented a new art that never existed. I have seen the man who first invented and created it, and I have talked to him." We know what Friar Giordane said because admirers copied his sermons down as he gave them. The inventor of spectacles apparently kept the method of making them to himself. Perhaps he thought this was the best way of getting money from his invention. But the idea soon got around. As early as 1300, craftsmen in Venice,the centre of Europe’s glass industry, were making the new "disks for the eyes".Spectacles at first were only shaped for far-sighted people. Concave lenses, for short-sighted people, were not developed until the late 15th century. Spectacles allowed people to go on reading and studying long after bad eyesight would normally have forced them to give up.They were like a new pair of eyes. The inventor of such a valuable thing should be honored, everyone thought. But for centuries no one had any idea who the inventor really was. So all kinds of candidates were put forward: Dutch, English, German, Italians from rival cities. A fake memorial was erected last century in a church in Florence to honor a man as the true inventor of spectacles-but he never even existed.

The first spectalces were made for ()

A、any one who had an eye trouble

B、the far-sighted

C、the short-sighted

D、both the far-sighted and the short-sighted

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第11题

Man has always wanted to fly.Some of the greatest men in history have thought about th

e problem.One of these，for example，was the great Italian artist, Leonardo da Vinci(达·芬奇).In the sixteenth century he made designs for machines that would fly.But they were never built.Throughout history, other less famous men have wanted to fly.An example was a man in England 800 years ago.He made a pair of wings from chicken feathers.Then he fixed them to his body and jumped into the air from a tall building.He did not fly very far.Instead，he fell to the ground and broke every bone in his body.

The first real steps took place in France, in 1783.Two brothers, the Montgolfiers, made a very large “hot air balloon”.They knew that hot air rises.Why not fill a balloon with it？The balloon was made of cloth and paper.In September of that year，the King and Queen of France came to see the balloon.They watched it carry the very first air passengers into the sky.The passengers were a sheep and a chicken.We do not know how they felt about the trip.But we do know that the trip lasted eight minutes and that the animals landed safely.Two months later，two men did the same thing.They rose above Paris in a balloon of the same kind.Their trip lasted twenty-five minutes and they travelled about eight kilometers.

26.Leonardo da Vinci ______ .

A.said that man would fly in the sky one day

B.built a kind of machine which never flew

C.drew many beautiful pictures of birds

D.made designs for flying machine

27.Eight hundred years ago an Englishman ______ .

A.made a kind of flying machine

B.tried to fly with wings made of chicken feather

C.wanted to build a kind of balloon

D.tried to fly on a large bird

28.In fact，the Englishman who tried to fly ______ .

A.lost his life