—If I work hard at my lessons from now on. Can I do well in them?

—Sure. __________.

A．All rivers run into sea

B．Every day is not Sunday

C．Better late than never

D．Practice makes perfect

在人身意外伤害保险中，对于意外伤害造成的残疾来说，责任期限实际上是（）。

A.确定残疾程度的标准

B.确定残疾程度的条件

C.确定残疾程度的期限

D.确定残疾程度的依据