以下容量分析法所使用的滴定液是（）
A．氢氧化钠滴定液
B．甲醇钠滴定液
c．碘滴定液
D．硝酸银滴定液
E．乙二胺四醋酸二钠滴定液
参考答案：A
Oh，I'm not feeling well in the stomach.I ________ so much fried chicken just now.
A．shouldn't eat
B．mustn't have eaten
C．shouldn't have eaten
D．mustn't eaten
电梯出现困人故障时乘客应如何应对？
