机车信号记录器采用大容量（）作为存储介质进行记录，采用U盘作为转储介质进行转储。记录器故障后CF卡机车信号车载系统的正常工作。

—Shall we invite our teacher to the party?

—That's a good idea. But I _____ think she _____ come. [ ]

A. don't ; will

B.  / ; won't

C. won't; will

D. do; won't