能引起神经节阻滞和组胺释放的肌松药是()
A.琥珀胆碱
B.泮库溴铵
C.维库溴铵
D.米库溴铵
E.右旋筒箭毒碱
参考答案:E
— Do you enjoy watching stand-up comedy?
— . I prefer to watch science fiction movies.
A.Thank you
B.Yes, I do
C.Go ahead
D.Not really
已知一个样本1、3、2、5、x的平均数是3,则这个样本的标准差是