根据甲、乙两车的行程图填空。0R(?4N9`3H8m8h-b1s*e3a
0R(?4N9`3H8m8h-b1s*e3a
(1)0{*o)@3D3K0n8w-z车先行完30千米距离。0R(?4N9`3H8m8h-b1s*e3a
(2)乙车比甲车先行0\/}6o4r)M+d分钟。0R(?4N9`3H8m8h-b1s*e3a
(3)甲车的时速是8]1b:`+n7i2g千米/时。0R(?4N9`3H8m8h-b1s*e3a
(4)甲、乙两车时速差是3s,O9b7}9^:n*@;X千米/时。0R(?4N9`3H8m8h-b1s*e3a