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常用普通扰码序列又分成（）个集，每个集包括1个主扰码序列和跟随在主扰码序列之后的（）个辅助扰码序列。

答案

参考答案：512；15

改错题

阅读下面诗文：

苦战八年得胜利，乌云消散人喜狂。

茫茫巴渝谈判地，浩浩中华和平先。

党国操戈逆天行，中共促和顺民祥。

功过是非自评说，留给史书一页煌。

（1）诗中苦战八年是为了驱逐哪一帝国主义侵略者出中国？（2分）这一胜利有重大历史意义？（4分）

（2）巴渝指的是哪一个地方？（2分）请你说出这次谈判的时间?（2分）以及谈判双方的目的。（4分）

（3）党国操戈逆天行是以什么事件为标志的？（2分）

（4）功过是非自评说，请你结合所学史实以及这首诗，说一说你对功过是非的看法。（4分）
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单项选择题

E


Last year, Shanghai-born Charles K. Kao and two North American scientists got the 2009 Nobel Prize(诺贝尔奖) in Physics together. Their work made the Internet come into a new age.
Kao, 77, was born in Shanghai in 1933. He is famous for finding out how to transmit (传输)light signals(信号) over long ways through glass fibers (玻璃纤维) as thin as a human hair. His work makes the Internet information transmit faster around the world. Kao was vice chancellor(副校长) of the Chinese University of Hong Kong from 1987 to 1996. He doesn’t work, and lives in Hong Kong now.
The Chinese people were pleased to learn the good news. "The people of Hong Kong and I send our congratulations to Kao on receiving the prize... Kao is also a true gentleman. We are greatly proud to have such an excellent person in Hong Kong. "Zeng Yinquan once said.
Willard Boyle, a Canadian American, and George Smith of the United States got the other half of the prize.

How many scientists got the 2009 Nobel Prize in Physics together ( )

A．One.

B．Two.

C．Three.

D．Four
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