乌头碱的致死量为()
A.30mg
B.5~10mg
C.2~4mg
D.0.5mg
E.0.2mg
参考答案:C
解析:乌头碱的致死量为2~4mg。故答案是C。
What _ _ you _ _ to drink tonight?[ ]
A. did; went
B. are; go
C. are; going
下列哪种情况肺泡呼吸音减弱()
A.发热
B.贫血
C.运动
D.甲状腺功能亢进
E.胸腔积液