题目内容（请给出正确答案）

[单选题]

During the modem boot process，how does the modem acquire the downstream channel？（）

A.ThemodemiscommandedbytheCMTStosettothespecificchannel

B.Themodemusesthedefaultvalueinthebroadcomchipset

C.ThemodemtunersetsalevelasdefinedbytheDOCSISspecification

D.ThemodemtunerscansthedownstreamspectrumuntildigitalQAMmodulatedsignalisencountered

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更多“During the modem boot process，…”相关的问题

第1题

阅读材料，回答题。"High tech" and "state of the art" are two expressions

阅读材料，回答题。

"High tech" and "state of the art" are two expressions that describe the modem technology. High tech is just a shorter way of saying high technology. And high technology describes any invention, system of device that uses the newest ideas or discoveries of science and engineering. What is high tech？ A computer is high tech. So is a communications satellite. A modem manufacturing (生产) system is surely high tech. High tech became a popular expression in the United States during the early 1955’s. Because of improvements in technology, people could buy many new kinds of products in American stores, such as home computers, microwave ovens, etc.

"State of the art" is something that is as modem as possible. It is a product that is based on the very latest methods and technology. Something that is "state of the art" is the newest possible design or product of a business or industry. A state of the art television set, for example, uses the most modem electronic design and parts. It is the best that one can buy.

"State of the art" is not a new expression. Engineers have used it for years, to describe the best and most modem way of doing something. Millions of Americans began to use the expression in the late 1970’s. The reason was the computer revolution. Every computer company claimed that its computers were "state of the art".

Computer technology changed so fast that a state of the art computer today might be old tomorrow. The expression "state of the art" became as common and popular as computers themselves. Now all kinds of products are said to be "state of the art".

What is the purpose of the passage？________ 查看材料

A.To tell how "high tech" and "state of the art" have developed.

B.To give examples of "high tech".

C.To tell what "high tech" and "state of the art " are.

D.To describe very modem technology.

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第2题

Modem ideas are beginning to influence the Eskimos, but not enough to make much difference

to their way of life. They still spend the winter in igloos, the round huts that are built of snow frozen hard. They still travel on sleds that are pulled by dogs. The winter is too cold for hunting, so during that season they live on the stores of seal meat that they have killed in the summer. But seal meat is not the only kind of food that they eat. In summer they hunt bears and reindeer, a type of deer With long branching horns that is used for its milk, meat and skin. They also fish all the year round. The Eskimos who are hunters in summer are fishermen in winter. In winter they make holes in the ice and catch their fish through the holes that they have made. The Eskimos are adaptable. That is why they are able to live in Arctic regions.

Which is the main topic of this passage？

A．Modem ideas are beginning to influence the Eskimos.

B．Why are the Eskimos able to live in Arctic regions？

C．The Eskimos are adaptable.

D．Eskimos' way of life has not changed very much.

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第3题

In our society, we must communicate with other people. A great deal of communicating is pe

rformed on a person-to person【C1】______ by the simple means of speech. If we travel in buses, stand in football match【C2】______ , we are likely to have conversation【C3】______ we give information or opinions, and sometimes have our views【C4】______ by other members of society. Face-to-face contact is【C5】______ the only form. of communication and during the last two hundred years the【C6】______ of mass communication has become one of the dominating factors of contemporary society. Two things, 【C7】______ others, have caused the enormous growth of the communication industry. Firstly, inventiveness has led to【C8】______ in printing, photography and so on. Secondly, speed has revolutionized the【C9】______ and reception of communications so that local news often takes【C10】______ back beat to national news.

No longer is the possession of information【C11】______ to a privileged minority. Forty years ago people used to【C12】______ to the cinema, but now far more people sit at home and turn on the TV to watch a programme that【C13】______ into millions of homes. Communication is no longer merely concerned【C14】______ the transmission of information. The modem communications industry influences the way people live in society and broadens, their【C15】______ by allowing access to information, education and entertainment. The printing, broadcasting and【C16】______ industries are all involved with informing, educating and entertaining.

【C17】______ a great deal of the material communicated by the mass media is very【C18】______ to the individual and to the society of which he is a part, the vast modem network of communications is【C19】______ to abuse. How ever, the mass media are with us for better, for worse, and there is no turning【C20】______ .

【C1】

A．basis

B．base

C．foundation

D．ground

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第4题

BOO（建设－经营－持有)模式不属于PPP模式。（）

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第5题

关于BOT和BOO的区别是

A.BOT中合作方不无偿移交所有权

B.BOO中合作方不无偿移交所有权

C.BOT中合作方不负责项目运营

D.BOO中合作方不负责项目运营

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第6题

Milk has become a popular drink for modem Chinese, not only is its nutritional（营养的) val

Milk has become a popular drink for modem Chinese, not only is its nutritional(营养的) value appreciated, it seems even to have taken the role making the whole nation strong. Milk industry has only about 180 years of history among the Hah people. For a long time, milk was considered a luxury(奢侈的) drink by common people. A widespread saying in the country was that Japan used a cup of milk to strengthen the constitution(体格) of its people. That sounds reasonable because the rich "Ca" in milk definitely benefits the constitution.

The average annual consumption per capita in Japan has risen from less than 10 kilograms immediately after World War II to 68 kilograms today. The average height of Japanese has increased by 11 centimeters during this period. The Chinese Government also hopes to improve the constitution of local people, and since milk is the most obvious nutritious food, it has naturally been picked up. But due to tradition, Chinese people are not in the habit of drinking milk regularly. The annual output of milk in the country is about 10 million tons, compared with an output of alcohol reaching 8 million tons. The annual milk consumption per capita is about 7 kilograms in China while the world's average is about 100 kilograms. The government has noticed the huge gap and plans to raise consumption to 10 kilograms per capita by 2005 and 16 kilograms by 2010. The government has also started plans for "school milk" since the beginning of this century.

Chinese government encourage people to drink milk and hope that ______.

A．the whole nation will become stronger

B．the milk industry will have a faster development

C．milk will no longer be considered a luxury drink

D．its nutritional value will be more appreciated

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第7题

BOT方式发展出了BOOT、BOO、BLT等引申方式。（)

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第8题

如果采用密钥为{nice}的列置换法加密明文“baby, i love you.”，则得到的对应密文是

A.boo yvu aly bie