临床上哪些患者应慎用或禁用潘库溴铵()
A．主动脉瓣狭窄
B．二尖瓣脱垂
C．二尖瓣狭窄
D．主动脉瓣回流
E．二尖瓣关闭不全
参考答案：A, B, C
Don't eat_______ sweets, Benny! There is_______ sugar in them.
A．too much; too much
B．too many, too much
C．too many; too many
D．too much; too many
怎样判断居民峰谷用电计量时段切换是否正确？
