Thenumber 9 11 is a special number,__,I think ,that will be remembered by the America forever

题目

Thenumber 9 11 is a special number,__,I think ,that will be remembered by the America forever
A which B that C one
A C 有什么区别吗 这一类的题 什么情况下用 which什么情况下用one呢

答案