____ four years since I joined the Army.
A.There was
B.There is
C.It was
D.It is
答案:D
简述逆断层的主要组合形式。
患者,女,55岁,发热,腹痛,里急后重,下痢赤白,舌红,苔黄腻,脉滑数。用药当首选()
A.赤芍
B.白头翁
C.木香
D.升麻
E.紫草