A.1nm=10-3μm B.1nm=10-7μm C.1nm=10-5μm D.1nm=10-6μm E.1nm=10-9μm
A.10% B.12% C.7.5% D.15% E.5%
A.液狀石蠟 B.水 C.煤油 D.甲基硅油 E.植物油