妇人怀妊，腹中拘急，绵绵作痛，小便不利者可选用何方治疗（）
A.温经汤
B.胶艾汤
C.当归散
D.当归芍药散
E.小建中汤
参考答案：D
-Will you go to the party with us?
-I'm not sure, I ___ go to visit my grandma with my cousin. [ ]
A. must
B. can
C. have to
D. may
从病原体侵入机体到临床症状出现这段时间称为
A．传染期B．潜伏期C．隔离期D．非传染期E．恢复期
