Hi, Mark. How was the musical evening?

— Excellent! Ales and Andy performed _________ and they won the firs prize.

A．skillfully

B．commonly

C．willingly

D．nervously

法约尔______理论旨在保持命令统一的情况下，迅速而及时地解决一般事务，从而使组织最上层得以从繁杂的事务中摆脱出来，专注于一些重大问题。