单项选择。

— Is there any fish on the table? 

—            . [ ]

A. Yes, there isn't

B. No, there is

C. Yes, there is

D. No, it isn't

开放性颅脑外伤手术不要求（）

A.及时彻底清创

B.尽可能一期缝合硬脑膜

C.拔出累及静脉窦的致伤物

D.彻底止血