细菌性痢疾的主要传播途径是（）
A.飞沫传播
B.粪-口传播
C.血液传播
D.虫媒传播
E.垂直传播
参考答案：B
—Were you at home at 7 o'clock last night?
—Yes, I _______ dinner with my mother. [ ]
A. was having
B. am having
C. have
D. had
易潮解的饮片是（）
A．冰片
B．芒硝
C．阿魏
D．滑石
E．血竭
