— Shall we have our Christmas tree decorated?

—_____ . I think it’s fine as it is.

A．Why not?

B．I can’t agree more

C．Not exactly.

D．Better not.

对软盘存放环境的湿度要求应为( )。

A．5%～60%

B．8%～83%

C．40%～60%

D．14%～40%