+The exercise and dieting that go on road trip learned along the way helped Xiao Ming solve the problem of temperature change during the fault. Is this a traffic sign?
(1)① Here18km; Stay away from Taizhou; ② The maximum speed from here to Taizhou is 40km/h; (2)t = s/v = 18km/40k m/h = 0.45h = 27min； (3)t = 10:30-9:00 = 1h 30min = 1.5h，V=80Km/h，S = vt = 80km/h× 1.5h = 120km .