A.struct node{int info;node *link;};
B.struct node{int info;struct *link;};
C.struct node{int info;struct node link;};
D.struct node{int info;struct node *link;};
A.窃听
B.篡改
C.假冒
D.伪造
A.余数与除数异号商1
B.余数为正商1
C.余数与除数同号商0
D.余数为正商0