碘伏多用的稀释浓度是
A．1%B．2%C．0.5%D．1:32E．1:213
参考答案：E
有50个数，其平均数为42，若去掉2个数，而这两个数的和恰好为132，剩下数的平均数是（ ）
A．5
B．35
C．41
D．84
33. Is it in this hospital_______my father had worked at I was born?
A．where; that
B．that; where
C．which; that
D．which; where
