---In the past ten years, there have been many changes in family life.

--- Are these changes ______?

A．better or worse

B．for the good or for the bad

C．for best or for worse

D．for the better or for the worse

任何职业道德的适用范围都是（）。

A、普遍的

B、有限的

C、无限的

D、不特定的