The price system is a complex network _______ the prices of all the products bought and sold in the economy as well as those of a great number of services.

A．consisting of

B．consisted of

C．making up of

D．made up

在组织变革的唐纳利模式中，弄清问题的实质，决定进行些什么变革，变革的目标是什么，如何对这些目标进行衡量等一系列问题属于变革的哪一个环节：（）

A.认识变革的需要

B.实施计划

C.认识限制条件

D.诊断问题