-- I happened to notice Bob’s father quarrelling with the teacher in defense of his son.

-- No wonder Bob always performs poorly in class. It’s really “________”.

A．Love me, love my dog

B．Like father, like son

C．Birds of a feather flock together

D．A busy mother makes a lazy daughter

患者，女性，18岁。突然剧烈头痛、伴呕吐，查体：颈项强直，克氏征阳性，布氏征阳性，体温37.0℃，既往身体健康。CT示双侧裂池及纵裂池内等密度影。

首先应考虑 （）

A.脑炎

B.脑膜炎

C.脑肿瘤

D.蛛网膜下腔出血

E.脑脓肿