问题 单项选择题

下列对于线性链表的描述中,正确的是( )。

A.存储空间必须连续,且各元素的存储顺序是任意的

B.存储空间不一定是连续,且各元素的存储顺序是任意的

C.存储空间必须连续,且前件元素一定存储在后件元素的前面

D.存储空间不一定是连续,且前件元素一定存储在后件元素的前面

答案

参考答案:B

解析: 在链式存储结构中,存储数据结构的存储空间可以不连续,各数据结点的存储顺序与数据元素之间的逻辑关系可以不一致,而数据元素之间的逻辑关系是由指针域来确定的。

阅读理解

Health insurance can be very expensive. Some working people do not make enough money to pay for it. In the US there is a program called Healthy Families. This program offers people health insurance at a low cost.

Families are charged about ¥7.00 a month for every child, and ¥10.00 for every adult. It costs much less than any other kind of health insurance. Having health insurance is very important. With this insurance, people can see a doctor when they are sick or hurt.

The program is not expensive at all, but many people are still not enrolling in it. People say that it still costs too much money. They need all of their money to pay for things like food and rent.

It would be great if everyone could have health insurance. People are working hard to come up with ways to make this happen. One idea is to make the Healthy Families Program free for some people.

It is important for people to see a doctor when they need to. The Healthy Families Program makes it possible for more people to do this. Many ideas are being considered. Hopefully some of them will allow even more families to get health insurance.

The Healthy Families Program is made to help those who don’t have welfare (社会保障金) and cannot earn enough to pay for private health insurance. It is an important program, but officials say that too many people are signing up for it and then dropping out because of the Healthy Families Program’s cost.

小题1: The aim of the Healthy Families Program is to __________.

A.help people earn more and pay for the program

B.help more families get health insurance

C.make it free for people to see a doctor

D.help families pay for private health insurance小题2:If a couple has two children, how much would health insurance cost every month in the family?

A.¥24.

B.¥28.

C.¥34.

D.¥40.小题3:Why is it very important for people to have health insurance?

A.They can afford to see a doctor when they need to.

B.They can get special medical care.

C.They can see a doctor free of charge.

D.They can go to see a doctor as soon as possible.小题4:In the passage we can learn all of the following EXCEPT that __________.

A.health insurance is very important for ordinary people

B.the program is still too expensive for many people

C.people should make more money to pay for private health insurance

D.many people don’t make enough money to pay for health insurance小题5:The passage is mainly about __________.

A.health insurance at a low cost

B.the benefits of health insurance

C.the cost of health insurance

D.the Healthy Families Program

判断题