——What about going to Hainan for vacation when school breaks up?

——          .It doesn’t matter to me where we go.

A．It depends

B．I think not

C．It’s up to you

D．It’s hard to say

开放性颅脑损伤最基本的处理原则是（）。

A.应用激素

B.应用镇静剂

C.清除颅内深部挫伤脑组织

D.及时应用血管扩张剂

E.清创后严密修补缝合硬脑膜