Let's _____ pears.
A. have
B. has
C. had
D. having
答案:A
与痿证发病关系密切的脏腑是
A.肝、肾、脾、胃
B.心、肝、肾、胃
C.肝、肾、肺、胃
D.心、肺、脾、胃
E.心、脾、肾、胃
桑螵蛸散主治何证?其用药有何特点?