问题 单项选择题

线性表的顺序存储结构和线性表的链式存储结构分别是()。

A.顺序存取的存储结构、顺序存取的存储结构

B.随机存取的存储结构、顺序存取的存储结构

C.随机存取的存储结构、随机存取的存储结构

D.任意存取的存储结构、任意存取的存储结构

答案

参考答案:B

解析:

数据结构的定义;数据的逻辑结构与存储结构;数据结构的图形表示;线性结构与非线性结构的概念

[评析] 顺序存储结构中,数据元素存放在一组地址连续的存储单元中,每个数据元素地址可通过公式 LOC(ai)=LOC(a1)+(i-1)L计算得到,从而实现了随机存取。对于链式存储结构,要对某结点进行存取,都得从链的头指针指向的结点开始,这是一种顺序存取的存储结构。

阅读理解

IELTS: international English language testing system

Introduction: The IELTS is jointly managed by the University of Cambridge Local Examination Syndicate (剑桥大学考试委员会), the British Council (英国文化委员会) and IDP Education Australia (澳洲教育国际开发署)

Why more and more people are taking the IELTS test?

The IELTS test is widely recognized by the colleges, universities and other academic institutions of Australia, New Zealand, Canada and the United Kingdom. More and more universities and colleges in the US are also accepting an IELTS result as a language requirement for application to degree courses.

IELTS is accepted by many important organizations, such as the New Zealand Immigration Bureau, the Australian Immigration and Cultural Department, the Canadian Immigration Bureau, the Australian Medical Council and the British Medical Association (总会).

Choice of two test types

There are two test models: Academic and General Training. The candidate must select the one suitable to his/here purpose for taking the test.

Academic: for candidates who want to apply for undergraduate or postgraduate courses.

General Training: for candidates who take IELTS for immigration purpose, training programmes, or work experience.

If you have any questions about which type to take, consult the Examinations Services staff at the British Council offices.

Content

The test is composed of four papers: Listening, Reading, Writing and Speaking. The first three papers must be taken at one sitting on one day, and the speaking paper may be taken up to two days later. Usually in China, the Listening paper is taken on a Saturday morning, followed by the Reading paper, and then Writing paper. The Speaking test is usually taken on the Saturday afternoon or on the following Saturday. Candidates must complete all four papers in order to obtain an overall score.

小题1:How many organizations is IELTS managed by?

A.6.

B.5.

C.4.

D.3.小题2:Why are more and more people taking the IELTS test?

A.It is widely accepted by many countries.

B.It is widely recognized by many colleges, institutions and many important organizations.

C.It’s proof for people’s ability.

D.It’s interesting and acceptable.小题3:What kind of candidates should choose Academic test?

A.Candidates who want for immigration.

B.Candidates who want for training.

C.Candidates who want for work experience.

D.Candidates who want for undergraduate or postgraduate courses.小题4:In China, what’s the test order?

A.Reading, writing, speaking, listening.

B.Reading, speaking, listening, writing.

C.Listening, reading, writing, speaking.

D.Speaking, reading, listening ,writing

多项选择题