____ you have got your license, ____ drive the car yourself?
有4个跷跷板,24个人几次才能全部轮流玩完?
78 ÷2____ 78 14 ÷1____ 14
49 ÷ 43 ____ 49 58 ÷5____ 58 × 15
如果a与-3的和是0,那么a是( )
请你帮小和尚标出桶上的号码.