试题与答案

在HFC网络的传输结构中,从有线电视中心至用户区域的结点之间使用以 【20】 作为传

题型:填空题

题目:

在HFC网络的传输结构中,从有线电视中心至用户区域的结点之间使用以 【20】 作为传输介质。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B解析: SOL的数据更新命令格式为: UPDATE<表名>SET列名1=表达式1[,列名2=表达式2…] [WHERE<条件表达式>] 一般使用WHERE子句指定条件,以更新满足条件的一些记录的字段值,并且一次可...

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题型:选择题

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B.只有对家用电脑的技术架构进行全面的革新,才能真正成为数字家庭的核心。

C.冼星海对西方音乐进行了严格的审视和选择之后,再把外国音乐优秀的东西撷取过来,融于本土音乐之中。

D.水牛奶进入市场已经有将近20年的历史了,它的营养价值比普通牛高。

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题型:阅读理解

Five people are at our table, including myself. I’ve already learnt a great deal about them in the short time we’ve been at sea, although we rarely meet except at mealtimes.

First of all, there is Dr. Stone. He is a man of about sixty-five, with gray hair and a friendly face. He gave up his work a short while ago and is now traveling round the world before he retires to some quite country village. As a young man, he served for many years as a doctor in the army and visited many countries. He’s told us a great deal about the city to which they are going.

Then there is “Grandmother”. I call her that because her name escapes me. In spite of being a grandmother, she looks remarkable young, no more than fifty. She is on her way to visit a daughter who went to Australia some years ago. Naturally she is very excited at the thought of seeing her again, and her three grandchildren, whom she has never seen.

Then there is a man I don’t care for very much, the engineer by the name of Barlow. He has been on leave in England and is now returning to his work in Singapore.

The other person who sits at our table is Mrs. Hunt. I’ve found out hardly anything about her. She’s extremely quiet and rarely talks, except to consult the doctor about children’s various illnesses. She is on her way to join her husband in India.

小题1:What can we know about Mr. Stone?

A.He is a doctor in the army now.

B.He is going to give up his work.

C.He has been retired for many years.

D.He knows a lot about the city the author is going to visit.小题2:Who live in India?

A.Mrs. Hunt

B.Grandmother

C.Mr. Hunt

D.The doctor小题3:The writer calls the second person “Grandmother” because _____.

A.She looks old.

B.he respects her

C.She has three daughters

D.he can’t think of her name小题4: The underlined phrase “on leave” in Paragraph 4 probably means _____.

A.on vacation

B.at home

C.about to leave

D.leaving

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