A.1.02 B.10.2 C.102 D.1020
A.2.778×10-1 B.2.778×10-2 C.2.778×10-3 D.2.778×10-4
A.8 B.12 C.20 D.25.4
A.1 B.10 C.100 D.1000
A.焦耳 B.卡 C.千克力·米 D.马力小时
