A.50m B.440m C.25m D.1000m
A.5 B.10 C.15 D.20
A.紅燈 B.綠燈 C.白燈 D.藍燈
A.50m B.400m C.25m D.1000m
A.綠燈 B.紅燈 C.藍燈 D.黃燈