《水中镭一226的分析测定》(GB/T11214---1989)中,进入闪烁室的放射性核素是()
A.铀-238
B.钍·232
C.氡.222
D.镭.226
参考答案:C
The boys always stays here for _________>
A.one and half hour
B.one and half a hour
C.one and a half hours
D.one and half hours
不能装于同一药斗或上下药斗的药组是()
A.附子与天花粉
B.升麻与葛根
C.小茴香与橘核
D.川乌与草乌
E.射干与北豆根