死亡的判断标准应该是（）。

A.呼吸停止

B.心脏停搏

C.各种反射消失

D.失去运动功能

E.失去语言表达力

--I’m sorry, I am too busy to help you, but my brother can.I’ve told him to.---______.

A．It doesn't matter

B．I’m so sorry to hear that

C．That’s very kind of you

D．That’s not fair