1km=1000m=100000cm=1000000mm 1a=100m제곱 1ha=10000m제곱=100a 1mL=1cm세제곱=1cc 1dL=100mL 1L=1000cm세제곱=1000mL=10dL 1g=1000mg 1kg=1000g 1t=1000kg
당신은 어느 그룹입니까?