单项选择题
A.1mL=1cm3 B.1mL=10cm3 C.1mL=103cm3 D.1mL=10-3cm3
A.L B.mL C.ML D.Ml
A.1m2=25.4in2 B.1in2=25.4m2 C.1in2=645.6m2 D.1in2=6.4516×10-4m2