比一比,再组词。
截____栽____载____
梯____第____递____
嘛____麻____摩____
熄____媳____息____
上面____是轴对称图形。
当开关S闭合后,螺线管的北极如图所示,请在图中标出电源的正极和置于螺线管正上方小磁针的N极。
I think watching table tennis match is ____ (simple) a waste of time. Why not take a walk in the garden, dear?