导体对（）的阻碍作用称为电阻。
A、电流
B、电压
C、电阻
D、元件
参考答案：A
小胖把12L水冲入2400毫升的浓缩橙汁后，分给24个小朋友，每个小朋友可分到多少橙汁饮料？
Don’t ________ women. They are as important as men for the development of society.
A．look up to
B．look down upon
C．look out for
D．look forward to
