—__________ does your father work?
—He works in a factory.
A:How
B:What
C:Where
D:Who
如图所示的阴极射线管,无偏转电场时,电子束加速后打到荧屏中央形成亮斑.如果只逐渐增大M1M2之间的电势差,则( )
The husband appreciates that his wife always avoids________him in front of his friends.