--Who is the old man talking with your teacher?

---I don’t know. I     him before.

A．was never seeing

B．had never seen

C．never saw

D．wouldn’t see

患者死亡，医患双方当事人不能确定死因或者对死因有异议的，应当在患者死亡后法定时限内进行尸检。其法定时限是

A．12小时内
B．24小时内
C．36小时内
D．48小时内
E．60小时内