问题 单项选择题

下列关于栈的描述中错误的是( )。

A.栈是先进先出的线性表

B.栈只能顺序存储

C.栈具有记忆作用

D.对栈的插入与删除操作中,不需要改变栈底指针

答案

参考答案:B

解析: 擒是限定只能在表的一端进行插入和删除操作的线性表,入栈和出栈都是在栈顶进行,它们的操作特点是先进后出,因此具有记忆作用。栈可以采用顺序存储,也可以采用链式存储。

阅读理解

阅读理解。

     A blind schoolgirl has become the youngest interpreter (口译员) when she is only ten years.

     Alexia Sloane is from Cambridge. She was told by the doctor she had a brain tumour (脑癌) when she

was on holiday with her parents in France. After that the two-year-old girl became blind.

     Though the little girl can't see anything, she has great talent for languages and at the age of 10 she is

already fluent (流利的) in English, French, Spanish and Chinese-and is learning German.

     Now her dream of working as an interpreter has come true. East of England MEP (欧盟议员) Robert

Sturdy invited her to the European Parliament (议会). "Usually a person who enters the European Parliament

should be 14 at least. So it was amazing for Alexia to work there at the age of 10." said Alexia's mother

Isabelle. Alexia can speak three languages since birth. As her mum is hah" French and half Spanish and her

dad Richard is English. "She has always been very good at languages and shown an interest from a very

young age." added Isabelle, who also has a four-year-old daughter Melissa.

     Alexia has dreamed of becoming an interpreter since she was six and chose to go to the European

Parliament as her prize when she won the Young Achiever Community Award of the Year (年度青年成就

奖). She asked if she could learn from the interpreters and HEP Robert Sturdy agreed to take her along as

his guest. "It was fantastic and I decided to become an interpreter," said Alexia. "Nothing can stop me."

1. How old is the youngest interpreter according to the passage?

A. 4.

B. 6.

C. 10.

D. 14.

2. When did Alexia Sloane become blind?

A. When she was born.

B. After she had a brain tumour.

C. After she became an interpreter.

D. When she was on holiday with her parents.

3. Who offered Alexia the chance of working as an interpreter?

A. Richard.

B. Isabelle.

C. Melissa.

D. Robert Sturdy. 

4. What is right about Alexia Sloane?

A. She can speak five language fluently.

B. She is a talented language learner.

C. She is the only child in the family.

D. She went to France on holiday after she won the award.

5. What do you think is the meaning of the sentence "Nothing can stop me."?

A. Never give up.

B. Believe in yourself.

C. Nothing is impossible.

D. Failure is the mother of success.

多项选择题