问题 单项选择题

如下是一个稀疏矩阵的三元组法存储表示和相关的叙述正确的是

A.行下标

B.列下标

C.值

D.1

E.2

F.5

G.1

H.3

I.2

J.2

K.7

L.9

M.3

N.5

O.6

P.3

Q.6

R.1

S.4

T.6

U.-1

V.5

W.4

X.3

答案

参考答案:B

解析:【命题目的】本题主要考查了对稀疏矩阵的理解。【解题要点】该稀疏矩阵有7列;稀疏矩阵有7个非0元素;该稀疏矩阵的第3行第6列的值为1。【考点链接】掌握广义表的定义和存储方式,多维数组的存储方式。

单项选择题
阅读理解

“This is the BBC News at Eight O’ Clock.”

“Chinese people spent about 120 billion yuan during the first three days of the May Golden Week last year. This year it has increased to 140 billion yuan.”

“The children of Beijing No.2 Middle School sang with students from Toronto in Canada to celebrate the 20thanniversary. They had been sister schools since 1986. They spent about two weeks together in Beijing. They visited the Great Wall and the Summer Palace. They took a lot of photos in Beihai Park.”

“Have you ever got tired of heavy shopping bags? A new shopping assistant robot which was invented by Japanese company could be the answer. The helpful robot can follow you around and carry several bags. The robot was tested at a shopping center in February 2006. ”

“About 500 people from different countries were in the 2006 “Rock Paper Scissors(剪刀)” World Match in Canada. This event was founded in 1842. It is said playing this game is fun, and also a good way to solve problems among people.”

“And now it’s time for Morning Music.”

小题1:The students from Canada and Beijing No. 2 Middle School didn’t ________.

A.take photos

B.visit the Great Wall

C.visit the Summer Palace

D.have a football match小题2:This year during the first three days of the May Golden Week, it cost Chinese people ___________ yuan more than that of last year.

A.260 billion

B.120 billion

C.140 billion

D.20 billion小题3:Which of the following is not talked about in the news?

A.The robot can help with shopping bags.

B.A Japanese company invented the robot.

C.The robot was tested at a shopping centre.

D.There are such robots in people’s homes now.小题4:The underlined word “anniversary” means           .

A.founding

B.yearly return of the date of an event

C.university

D.the new beginning of something important小题5:Which of the following is a game?

A.Rock Paper Scissors

B.May Golden Week

C.Shopping assistant robot

D.A visit to the school