—I say, Harry. What did you say to the laid-off worker just now?

—Nothing. I ____ to myself.

A．had only talked

B．am only talking

C．have just talked

D．was just talking

工作流程设计的基本原则不包括？（）

A、以顾客为中心

B、以价值为导向

C、以人为本

D、以市场为中心