口岸检验检疫机构发现禁止入境物的，作退回或者销毁处理。( )
参考答案：对
My mother was cooking while I_________ the radio.
A．listened to
B．have listened to
C．was listening to
D．am listening to
A．mgtgθ
B．mgsinθ
C．μmg
D．μmg
mgtgθ
mgsinθ