设指针 p 指向中结点 A ,指针 q 指向中结点 A 的前驱结点 B ,指针 s 指向被插入的结点 X ,则在结点 A 和结点 B 之间插入结点 X 的操作为( )。
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 ;
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