--Where did you go yesterday, Rick?

-- I went to see a             because I had a cold.

A. teacher               B. doctor                 C. reporter

化脓性脑膜炎的早期表现为（）。

A.早期可无异常发现

B.脑回之间界限模糊

C.脑沟、脑池、大脑纵裂池密度增高

D.脑表面出现细条状或脑回样强化

E.室管膜或脑表面钙化