Humor (幽默感) is very important to human beings. We can never have too much of it.

Without humor, life would be ______. [ ]

A. disappointed

B. boring

C. bored

女，60岁，外出途中突然头痛，眩晕，伴呕吐，走路不稳，查血压24／14kPa，心率62次／分，双眼向右眼震，右侧指鼻欠稳准，右侧巴宾斯基征阳性。

进一步明确诊断的主要措施为（）

A.详细追问有关病史

B.脑电图

C.头颅CT

D.脑脊液检查

E.血糖、血脂、电解质检查