Just then,another man, _______ behind the first,spoke up，“Who are you?”.

A．sitting

B．to sit

C．sat

D．having sat

某妇，23岁，外阴红肿胀痛，伴发热，两胁胀痛，口干咽苦，小便短赤，大便不爽，舌红，苔黄腻或黄厚，脉弦数。其治疗原则是______。