脑出血与蛛网膜下腔出血之鉴别下述哪点最重要
A．活动中发病
B．头痛、呕吐
C．脑脊液含血量多少
D．CT见脑突质内高密度灶
E．脑膜刺激征
参考答案：D
— _____________ do you have PE?
— Twice a week. [ ]
A. How many
B. How much
C. How often
D. When
下列性状的粪便提示急性细菌性痢疾的是（）
A.果酱样便
B.柏油样便
C.水样便
D.黏液脓血便
E.鲜红血便
