与人参相反的药物是
A.甘草
B.乌头
C.藜芦
D.白芍
E.细辛
参考答案:C
The approval period for a shipboard Oil Pollution Emergency Plan expires after().
A.two years
B.three years
C.four years
D.five years
妊娠期孕妇心脏的变化有哪些?