(b) (i) 1 km = 1 km xx (1000 m)/(1 km) xx (100 cm)/(1 m) xx (10 mm)/(1 cm) = 10^(6) mm 1 km = 1 km xx (1000 m)/(1 km) xx (1 "pm")/(10^(-12) ...
確定! 回上一頁