As ________ clear from his manners, he seems to be much of a scholar.

A．being

B．is

C．if

D．though

8个月小儿，发热、呕吐、抽搐3天，惊厥2次而入院，脑脊液结果支持"化脑"诊断，患儿入院后频繁抽搐，高热不退，神志不清，并出现一侧瞳孔扩大，四肢肌张力增高。该患儿出现了哪种情况（）

A.蛛网膜下隙出血

B.硬脑膜下积液

C.药物中毒

D.脑积水

E.脑疝