— Sorry, the tickets have already been sold out.

— Really? Maybe I ________ a little earlier.[ ]

A. should come  

B. should have come

C. could have come  

D. must have come

以下关于组织的说法哪一项是正确的?（）

A、很少用公司的资产冒险进行投机

B、以短期目标的实理为导向

C、有明确的目的．包括人员或成员．具有某种精细的结构

D、会经历由失误和失败所导致的困难时期