I play ___ piano very well and my brother plays _____ football very well.

A．the; /

B．the; the

C．/; the

D．/; /

冠字号码信息在金融机构本地及上传到信息系统后至少应保存（），并确保数据的安全。

A.一个月

B.两个月

C.三个月