题目内容

Complete the summary of Text B by filling the blanks with the help of initial letter given.Too Much of a Good Thing–A Real AddictionThe internet is a double-edged sword. It’s hard to deny the 1. p___________changes it adds to people’s lives as it makes life easier. Like any technology, though, it has negative aspects, such as Internet 2. a____________. College students are 3. i__________ severely without the discipline and structure of home. What causes Internet addiction is the release of 4. e_____________, which sustains virtual rewards from the brain.These rewards are simple 5. s________________, doing nothing but keeping students so 6. i________ that it hurts their studies, or spoils their lives. What’s the best defense against Internet addiction is 7. m___________. Use the wonders of connectivity to enrich your studies, stay connected with distant and real-life friends and explore 8. m_________ new worlds. The Internet is a powerful tool, but make sure that you use it 9. w_______ for all the good value it offers and that you won’t let too 10. m__________ of a good thing become something bad.

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单链表的访问规则是( )。

A. 随机访问
B. 从头指针开始,顺序访问
C. 从尾指针开始,逆序访问
D. 可以顺序访问,也可以逆序访问

单链表的结点结构包含数据域data、指针域next,next域存放的是( )。

A. 下一个结点的地址
B. 下一个结点的值
C. 本结点的地址
D. 本结点的值

带头结点的单链表的结点结构包含数据域data、指针域next,头指针为head,则第一个数据结点的数据域值是( )。

A. head->data
B. head.data
C. head.next->data
D. head->next->data

带头结点的单链表的结点结构包含数据域data、指针域next,当前指针为p,则使p指向下一个结点的语句是( )。

A. p->next=p->next->next;
B. p->next=p;
C. p=p->next;
D. p=p.next

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