下列（）不是影响极谱分析的干扰电流
A.残余电流
B.扩散电流
C.迁移电流
D.充电电流
参考答案：B
小题1:Sally Smith sent the postcard from ___________.
A．Barcelona, Spain
B．Boston, USA
C．Mexico City, Mexico
D．Bangkok, Thailand小题2:Bill will probably be back in____________.
A．a day
B．a week
C．two weeks
D．a month小题3:Which of the following is mentioned in the three postcards?
A．Barcelona is a big city.
B．Mexico city is very hot.
C．Bangkok is a very old city.
D．Mexico City is small but beautiful.
打开特性的快捷键是（）
A.Ctrl+2
B.Ctrl+5
C.Ctrl+8
D.Ctrl+1
