【单选题】What's your hobby?
D.
I am going to have a lesson.
【单选题】What's your hobby? I enjoy ( ) to music.
【单选题】What's your hobby? I like ___
【单选题】What's your hobby? [ ]
A.
I likes collecting stamps.
B.
I like collecting stamps.
C.
I like collecting stamp.
【单选题】起偏器与检偏器偏振化方向垂直,当把检偏器绕着光轴旋转180度时,透射过检偏器的光强变化情况( )