假定已建立以下链表结构，且指针p和q已指向如图所示的结点：
则以下选项中可将q所指结点从链表中删除并释放该结点的语句组是（）
A．(*P)．next=(*q)．next；free(P)；
B．P=q->next；free(q)；
C．P=q；free(q)；
D．p->next=q->next；free(q)；
参考答案：D
解析：
要将结点b从链表中删除，应先将a的指针域指向b结点的下一个结点，即p->next=q->next，然后释放指针q的空间。
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| Look! The bus 1 at a small bus stop. A man 2 out of the window. He sees a woman. She is selling 3 . The man wants 4 a cake. But he doesn't want to go out because it is raining. The man sees a boy. The boy is 5 the window. "Come here, boy," the man says. "Do you know 6 the cake is?" "Twenty fen," the boy says. The man 7 the boy forty fen and asks him to buy two cakes. "One is for you and the other is for me," he says to the boy. After 8 minutes, the boy comes back. He 9 a cake. He gives the man twenty fen and says, "Sorry, there 10 only one cake left." | ||||
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