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Over the years, wireless communication technologies have fully proven effective for data a

s well as voice applications. It【B1】the efficiency and productivity of workers in a【B2】of other business environments. Key wireless technologies and【B3】including wireless LANs, cell telephone and packet data networks, global tracking systems, mobile computing, wireless Internet access, and enhanced paging and dispatch systems. Wireless LAN products,【B4】wire-based networks, connect PCs, laptops, PDAs, and more to LANs but offer one important【B5】they allow you to move or "roam"【B6】while staying tied to your【B7】or the information on your wired network【B8】you can communicate with them【B9】you are, without ever losing the【B10】to the network,

Digital's wireless LAN products are clear leaders in the marketplace. Digital【B11】the industry's most complete portfolio(系列服务) of mobile and wireless products.【B12】such as wireless PC Cards, wireless ISA adapters and superior wireless bridge, digital cordless telephony【B13】desktop devices to communicate wirelessly with other wireless【B14】, or access network files, services, and devices on the wired network.

Wireless communication technology can also be used for【B15】time data collection in locations【B16】considered too remote, inaccessible or environmentally hostile for conventional wired monitoring systems. Mobile hosts such as notebook and palmtop computers are now widely【B17】and affordable. Today's laptops and notebooks come loaded【B18】almost all imaginable wireless communications devices. This gives desktop PC customers a choice of wireless technology【B19】best suits their mobility and application needs.

Other markets for wireless technology include customer service, retailing, and health care.【B20】every market in the service sector of the economy is a candidate for wireless technologies and services.

【B1】

A．reduces

B．improves

C．disturbs

D．provokes

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更多“Over the years, wireless commu…”相关的问题

第1题

Over the lasr few years, guns are becoming more and more popular in America.（)

Over the lasr few years, guns are becoming more and more popular in America.()

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第2题

阅读：On Thursday afternoon Mrs. Carke, dressed for going out, took her handbag

On Thursday afternoon Mrs. Carke, dressed for going out, took her handbag with her money and her key in it, pulled the door behind her to lock it and went to the over 60s Club. She always went there on Thursdays. It was a nice outing for an old woman who lived alone.

At six o'clock she cane home, let herself in and at once smelt cigarette smoke. Cigarette smoke in her house？ How？ How？ Had someone got in？ She checked the back door and the windows. All were locked or fastened, as usual. There was no sign of forced entry.

Over a cup of tea she wondered whether someone might have a key that fitted her front door-"a master key"perhaps. So she stayed at home the following Thursday. Nothing happened. Was anyone watching her movements？ On the Thursday after that she went out at her usual time,dressed as usual, but she didn't go to the club. Instead she took a short cut home again, letting herself in through her garden and the back door. She settled down to wait.

It was just after four o'clock when the front door bell rang.Mrs. Clarke was making a cup of tea at the time. The bell rang again, and then she heard her letter-box being pushed open. With the kettle of boiling water in her hand, she moved quietly towards the front door. A long piece of wire appeared through the letter-box, and then a hand. The wire turned and caught around the knob on the door-lock. Mrs. Clarke raised the kettle and poured the water over the hand. There was a shout outside, and the skin seemed to drop off the fingers like a glove. The wire fell to the floor, the hand was pulled back, and Mrs. Clarke heard the sound of running feet.

1.Mrs. Clarke looded forward to Thursday because_______.

A.she worked at a club on the day

B.she said visitors on Thursdays

C.she visited a club on Thursday

D.a special visitor came on Thursday

2.If someone had made a forced entery,_______.

A.Mrs.Clarke would have found a broken door or window

B.he or she was still in the house

C.things would have been thown about

D.he or she would have needed a master key

3.On the third Thursday Mrs. Clarke went out_______.

A.because she didn't want to miss the club again

B.to see if the thief was hnging about outside

C.to the club but then changed her mind

D.in an attempt to trick the thief

4.The lock on the front door was one which_______.

A.needed a piece of wire to open it

B.could he opened from inside without a key

C.could't be opened without a key

D.used a knob instead of a key

5.The wire feel to the floor_______.

A.because Mrs.Clarke refused to open the door

B.when the man's glove dropped off

C.because it was too hot to hold

D.because the man justwanted to get away

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第3题

Has the Earth got steadily colder over the last ten thousand years？A．No.B．Yes.C．Not mentio

Has the Earth got steadily colder over the last ten thousand years？

A．No.

B．Yes.

C．Not mentioned.

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第4题

But competitive swimming is just over one hundred years old.（英译中）

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第5题

Wine-making in France has a history of over 2, 500 years

A Right

B Wrong

C Not mentioned

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第6题

Over the next five years Thorntec intends to expand in ______ .A．Southern AfricaB．EuropeC．

Over the next five years Thorntec intends to expand in ______ .

A．Southern Africa

B．Europe

C．Asia

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第7题

The company has（）over the years into a multi-million dollar organization.

A.involved

B.resolved

C.evolved

D.revolved

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第8题

Over the past few years, there has been tremendous_____in the international marriage busin

ess.

A．growth

B．grows

C．grown

D．grower

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第9题

For over a million years, our forefathers were basically ______.A．successful farmersB．co-o

For over a million years, our forefathers were basically ______.

A．successful farmers

B．co-operating hunters

C．runners and jumpers

D．skillful sportsmen

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第10题

In recent years there has been a continuously growing concern over the effects of the use

of_____fertilizers.

A．tender

B．obstinate

C．delicious

D．artificial

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第11题

听力原文：Kids are going all over the world without ever leaving their school. They are usi

听力原文： Kids are going all over the world without ever leaving their school. They are using their computers. A school in California could be the most wired school in America. They ate wired to the Internet through their computers.

Thirty students are able to use the Internet every day. The kids are between the grades of kindergarten and fifth grade. The teacher says that it is hard to get them away from the computers. They do not even want to take a rest.

The Internet has opened the world to many people. Now students can go to any library on earth. They can get information. They can visit a child in another country.

Laura Bacon likes to visit with other students. She's going to Peggy's page. Peggy is a school student in London, England. She put her own home page on the Internet. It includes pictures of Peggy, her school, her mom, dad and friends. You can send her mail, too.

A scientist helped to wire the school, He says, "Here is a plan to connect 12 thousand California schools to the Internet."

Wiring schools in California can cost a lot of money. It needs to be done by volunteer effort or schools will not be able to afford it. They think that it will cost as much as fifty billion dollars.

Some people say that the money should be spent on teachers instead of computers. Some people say that it would be worth it to wire all of classrooms.

(33)

A．A school in California.

B．A student in London.

C．Home page on the Internet.

D．Computers in the classroom.

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