引起组胺释放的肌肉松弛药有（）
A.维库溴铵
B.阿曲溴铵
C.顺式阿曲溴铵
D.泮库溴铵
E.罗库溴铵
参考答案：B, C
密码是操作员进入系统的通行证，它一般由电算主管设置和更改。( )
Word came _______ the students would put off the outing until next week, when they wouldn’t be busy.
A．that
B．when
C．which
D．whether
