急性细菌性痢疾典型的大便性状是（）霍乱的大便性状是（）
A.黏液脓血痰
B.柏油便
C.米泔样便
D.蛋花汤样便
E.血水样便
参考答案：A,C
Many students are about football． They play a game whenever possible．
A．crazy; will
B．crazy; are going to
C．fond; will
D．fond; are going to
试述倾斜长壁采煤方法的优缺点？
