已知某种型号的纸100张厚度约为1cm,那么这种型号的纸13亿张厚度约为[ ]
A.1.3×107km
B.1.3×103km
C.1.3×102km
D.1.3×10km
答案:C
Some young people are now _____ to buy private (私人的) cars. [ ]
A. rather rich
B. very rich
C. rich enough
D. enough rich
链表对于数据元素的插入和删除不需移动结点,只需改变相关结点的 【5】 域的值。