_______ late in the afternoon, Bob turned off the alarm.

A．To sleep

B．Sleeping

C．Sleep

D．Having

脑疝发生后下列哪项措施是禁忌的（）

A.立即静滴甘露醇

B.积极明确病因，尽早去除病因

C.保持呼吸道通畅

D.腰椎穿刺引流脑脊液

E.脑室穿刺引流脑脊液