题目内容

硬盘上最基本的数据存取单元是()

A. 磁道
B. 柱面
C. 扇区
D. 盘片

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设指针rear指向带头结点的循环单链表的尾结点,若要删除链表的第一个元素结点,正确的操作是()

A. s=rear ; rear=rear->next;
B. rear=rear->next;
C. rear=rear->next->next;
D. s=rear->next->next ; rear->next->next=s->next;

Is the following research topic effective? “Why is nuclear power a more promising energy source than solar power?”()

在一个单链表中,已知q所指结点是p所指结点的直接前驱,若在q和p之间插入s所指结点,则执行 操作()

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

Is the following research topic effective? “How safe is nuclear power?”()

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