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Silver is the best conductor of electricity, copper ________ it closely.A) followed

Silver is the best conductor of electricity, copper ________ it closely.

A) followed

B) following

C) to follow

D) being followed

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更多“Silver is the best conductor o…”相关的问题
第1题
根据文章内容进行判断,正确写“T”错误写“F”。 Beads, stones, seashells, paper, precious metals such as gold and silver, base metals such as iron have all been used as money. Today, money is printed on paper. A lot of cou

根据文章内容进行判断,正确写“T”错误写“F”。

Beads, stones, seashells, paper, precious metals such as gold and silver, base metals such as iron have all been used as money. Today, money is printed on paper. A lot of countries use their own currency, with names such as dollar, pound, franc, ruble, Yuan and so on. Since 2002, 18 of the EU members have replaced their national currencies by Euro notes and coins.

If you want to pay for something in another currency, you have to change your money into the other money. If you want to travel outside your native country,you need to change your own country's money for the money of the country you are visiting. Most large banks sell foreign currencies. You can exchange money at a bank or at an office of a tourist agency.

Wherever you go, exchanging money puts you in touch with international finance, which is concerned with exchange rates between different currencies. Deciding the rate for the international exchange of money is one of the most complex aspects of international banking.

()26. This best title for this passage is “The history of money”

()27. Euro is available in all EU member countries.

()28. Foreign exchange rates have significant impact on the economy of a country.

()29. Currency means money in the form. of paper.

()30. Banks are a good option to get your money exchanged.

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第2题
Text 3To find Kim Hyung Gyoon 's office in Samsung's R&D complex, just follow the bask

Text 3

To find Kim Hyung Gyoon 's office in Samsung's R&D complex, just follow the baskets of dirty clothes. No, Kim is not running the company laundry. As chief of Samsung's Washing & Cleaning Technology Group (WCTG) , he's the man behind a new washing machine that deposits tiny silver particles (small pieces of things) -about 1110, 000 the thickness of a human hair-onto clothes to make them germ-and-odor-free without the need for hot water. The device represents the first mass-produced application of this type of nanotechnology-the science of very small struc- tures-to home appliances. "In summer of 2002, I asked everyone in the office to take off their socks, " says Kim. "I took one sock from each person and placed it in a regular washing machine;the others were washed in a machine with the Ag+ Nano System. The next day, I asked everyone to check the odor of their socks after a day's wear. One began to produce a strong unpleasant smell, and the other was odorless. "

Kim says he came up with the idea five years ago while on a business trip to Japan, where he learned of a brand of socks that retained their freshness even after many days of unwashed wear and tear. Tiny sticks of silver with germ-killing chemicals were woven into the fabric. When he got back to Seoul, Kim applied the principle to washing machines.

According to the Korea Testing & Research Institute for the Chemical Industry, Samsung's de- vice kills 99.9% of germs. Kim says garments stay germ-free for up to a month after being laun-dered. The Ag+ Nano device went on sale in March 2003 and costs around $1,150; the revolu- tionary technology is also being used in Samsung's refrigerators and air conditioners.

No wonder: consumers seem to like a little silver in their spin cycles. Since Samsung's nano-armed products were first launched, they have brought in an estimated $779 million in revenue. O-verall, nanotech has been one of science's fastest-growing fields in recent years, with potential ap-plications in fields as diverse as energy production and toothpaste manufacture. The nanotech mar-ket is projected to be worth $1 trillion by 2015.

56. Which of the following best describes the nature of Kim Hyung Gyoon's work?

[ A] Product development,

[ B] Market investigation.

[ C] Research designing.

[ D] Sales promotion.

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第3题
Archimedes was a famous Greek mathematician and scientist. He was born about 287 BC and di
ed in 212 BC.

Archimedes is well-known for one specific (精确的) idea that he came up with. "Archime des' principle" tells us that a solid object which is immersed in a liquid is pushed up by a force which is equal to the weight of the water that moves. For example, if you put a piece of wood and a piece of metal of the same size in water, only the wood will float. Both the wood and metal move the same amount (量) of water, but the water moved by the wood weighs less than that of the water moved by the gold. It is believed that Archimedes discovered this principle when the King of Syracuse asked him to solve a problem. The King wanted to know if his crown (皇冠) was pure gold or a mixture of gold and silver. The King, of course, did not want to melt his crown to find out. The idea came to Archimedes as he lowered himself into his bath. He noticed how the water spilled out of the tub. He decided to use the same idea for the crown. He knew that a gold crown immersed in water would weigh more than the one made of silver. The experiment was done and the goldsmith was proved guilty of trying to cheat the King.

The best title for this passage is ______

A.Archimedes

B.Archimedes's principle

C.A Gold and Silver Crown

D.The King of Syracuse

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第4题
听力原文:W: Hello! This is Johns Hopkins. Dr. Silver's Office. Can I help you?M: Hello! Th

听力原文:W: Hello! This is Johns Hopkins. Dr. Silver's Office. Can I help you?

M: Hello! This is Conley. Oh, I thought you opened at 10:00 a.m., but my wife told me to try earlier. She was right! I was going to call you at lunch.

W: Yes, your wife is right. People are always surprised that we're here so early. The reason is that our motto is "Always at patients' service". From around the world, people come to Johns Hopkins trusting that they will receive the best, most comprehensive patient-focused care available anywhere. How can I help you, sir?

M: Well, I'd like to make an appointment to have a cheek-up, please.

W: Okay. I'd like to make sure what your name is, please.

M: Yes. My name is Ian Conley, I-A-N C-O-N-L -E-Y.

W: Thank you, Mr. Conley. Well, I'm sorry to tell you that I have a lot of appointments these two days. How about the day after tomorrow at 9:30?

M: Um...would you have anything in the afternoon? Well, I will have a meeting Thursday morning.

W: Okay. Hmm...we do have an opening that afternoon at 4:00. Would that be good for you?

M: Yes, that would be just tine. I will come at 4:00 o'clock Thursday afternoon.

W: Okay. Mr. Conley, while I have you on the line, could I just check a few things?

M: Sure.

W: Is your address still 2354 Lecklear Street, apartment 11?

M: Actually, ma'am, it's number 17.

W: Okay, I'll change that. And your phone number—is it 233-4027?

M: Yes, it is.

W: Thank you, Mr. Conley. Alright, I have you down for 4:00 on Thursday afternoon.

M: Thanks. See you then.

W: Bye.

(20)

A.The woman speaker is a doctor.

B.The man speaker is called Silver.

C.The man called the woman at lunchtime.

D.The man's wife wanted to have a check-up.

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第5题
Read the article below about changes in working time.Choose the best sentence to fill in e

Read the article below about changes in working time.

Choose the best sentence to fill in each of the gaps.

For each gap 8—12, mark one letter (A—G) on your Answer Sheet.

Do not use any letter more than once.

One answer has been given as an example.

There is an example at the beginning.

The Nature of Money

C In the upper-left portion above the seal, a statement written in fine print says that the note is legal tender(法定货币) and that it" is redeemable(可兑现的)in lawful money at the United States Treasury (美国财政部) , or at any Federal Reserve Bank. " Does this mean that the bill is not lawful? At the bottom center the same bill says, " Will pay to the bearer on demand X dollars. " (8)…

(9)…Many people believe that money has no value unless(10)…They think that the Federal Reserve note is only a symbol for money, and that real money is the precious metal backing the note. Some people look on money as wealth and believe that it must have intrinsic (内在的)value.

If we were to study the history of money, we would find that (11)… Cattle, shell, beads(珠子), tobacco leaves, and various metals—including iron, zinc(锌), bronze(青铜), and copper—have all been used as a basis of exchange. The precious metals, particularly silver and gold, have proved most satisfactory for this purpose and have been most commonly used in modern times.

Until early 1968, the United States backed its Federal Reserve Notes with 25 percent gold, but this did not mean that (12)…Clearly, it is not what money is but what it does that is important.

A it is backed by gold or silver.

B in different places and at different times a variety of things have been used as money.

C See if you can locate a $ 5, $ 10, or $ 20 bill printed before 1964 and marked " Federal Reserve Note" over the portrait.

D citizens could use gold as money or convert paper dollar to gold.

E therefore, the precious metals can be taken as money.

F Does it mean that your X-dollar bill is not X dollars?

G Much confusion exists about the real nature of money.

(8)

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第6题
Dollars and cents are the basic units of American money. The back of all dollar bills are
green (hence "greenbacks"). The commonly used coins are: one cent(penny), five cents(nickel), l0 cents (dime), and 25 cents (quarter). 50 pieces (half dollar) and silver dollars (not really silver anymore) are gaining in usage, while there has been talk of phasing out the penny--that's inflation for you. "Always early plenty of quarters when travelling. Very useful for phones, soda machines, laundry machines, etc." There is generally no problem in using U. S. dollars in Canada, but this is never possible in reverse.

It's useful always to carry small change for things like exact fare buses, but do not carry large sums of cash. Instead keep the bulk of your money in travellers' cheques which Can be purchased both in the US and abroad and should be in dollar denominations. The best known cheques are those of American Express, so you will have the least difficulty cashing these, even in out of the way places. Thomas Cook travellers' cheques are also acceptable, especially as lost ones can be reclaimed at Some car rental companies. Dollar denomination cheques can be used like regular money. There's no need to cash them at a bank: use them instead to pay for meals, supermarket purchases or whatever. Ten or twenty dollar cheques are accepted like this almost always and you'll be given change just as though you'd presented the cashier with dollar bills. Be prepared to show I. D. when you cash your cheques.

Credit cards can be even more valuable than travellers' cheques, as they are often used to guarantee room reservations over the phone and are accepted in lieu of deposit when renting a car--indeed without a credit card you may be considered so untrustworthy that not only a deposit but your passport will be held as security too. The major credit cards are VISA, Master Charge and Access, Diners Club and American Express. If you hold a bank card, it could well be worthwhile to increase your credit limit for travel purposes--you should ask your bank manager.

Why is it useful to carry enough 25-cent coins with you?

A.They can act as small change for the exact bus fares.

B.There is generally no problem in using them in Canada.

C.As a basic unit of money, they are gradually gaining in usage.

D.They may come in handy for pay phones or laundry machines.

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第7题
听力原文:There was once a man who spent all his time in his glasshouse. Flowers were his n

听力原文: There was once a man who spent all his time in his glasshouse. Flowers were his name, and flowers were his main joy in life He grew flowers of every color under the sun. He grew these flowers in order to enter them for competition. His greatest hope in life was to grow a rose of an entirely new color that would win him the silver cup for the Rose of the Year (32) .

Mr. Flowers' glasshouse was close to a public path, which was always used by children walking to and from school. Boys were often attracted to throw a stone or two at his glasshouse (33) . So Mr. Flowers did his best to be in or close by his glasshouse at the beginning and end of the school day.

However, it was not convenient or possible to be on guard all the time (34) . Mr. Flowers had tried in many ways to prevent harm to his glasshouse, but nothing that he had done had been successful.

Then, just as he was giving up hope of ever winning the battle, and of growing the Rose of the Year, he had a truly wonderful idea. He put up a large notice made of good, strong wood, some meters away from the glasshouse, where it could be clearly seen from the path. He had painted on the board the words: DO NOT THROW STONES AT THIS NOTICE. After this, Mr. Flowers had no further trouble. The boys were much more attracted to throw stones at the notice than at the glasshouse (35) .

(33)

A.To grow beautiful flowers.

B.To grow a rose of new color and win a prize.

C.To grow all kinds of flowers in the world.

D.To take part in the competition.

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第8题
Today anyone will accept money in exchange for goods and services. People use money to buy
food, furniture, books, bicycles and hundreds of other things they need or want. When they work, they usually get paid in money.

Most of the money today is made of metal or paper. But people used to use all kinds of things as money. One of the first kinds of money was shells. Shells were not the only things used as money. In Chinese history, cloth and knives were used. In the Philippine Islands, rice was used as money for a long tie. Elephant tusks, monkey tails, and salt were used as money in parts of Africa. Cattle were one of the earliest kinds of money. Other animals were used as money, too.

The first metal coins were made in China. They were round and had a square hole in the center. People strung them together and carried them from place to place. Different countries have used different metals and designs for their money. The first coins in England were made of tin. Sweden and Russia used copper to make their money, Later, countries began to make coins of gold and silver.

But even gold and silver were inconvenient if you had to buy something expensive. Again the Chinese thought of a way to improve money. They began to use paper money. The first paper money looked more like a note from one person to another than the paper money used today.

Money has had an interesting history from the days of shell money until today.

Which of the following is the best title for this article?

A.Countries and Their Money.

B.Kinds of Money.

C.Trade and Money.

D.The History of Money.

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第9题
[ A] silver [ B ] prizes [ C ] cookbook [ D] candy

[ A] silver

[ B ] prizes

[ C ] cookbook

[ D] candy

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