—How was the school's sports meet?  

—We didn't plan it like that but it _______ very well.  [ ]

A. tried out

B. went out

C. worked out

D. carried out

基本RS触发器电路中，触发脉冲消失后，其输出状态（）。

A.恢复原状

B.保持状态

C.截止状态

D.饱和或截止状态