与(a-1)(a2+a+1)的积等于a6-1的多项式是[ ]
A.a3+1
B.a3-1
C.a2+a+1
D.a2-a+1
答案:A
_____makes him different is ______he can offer more information.
A.What , that
B.which, that
C.That, that
D.That, what
办理神州行“两城一家”业务省际套餐后,选定省及归属地主叫资费()
A.0.12元/分钟
B.0.19元分钟
C.0.23元分钟
D.0.29元分钟