多选题During the photoconductor preparation step， residual charge can be removed by which of the following？（）APressureBOilCLightDGravityEElectrical Charge
题目
多选题
During the photoconductor preparation step， residual charge can be removed by which of the following？（）
A
Pressure
B
Oil
C
Light
D
Gravity
E
Electrical Charge