A.0.5% B.0.1% C.0.2% D.0.05%
A.從下向上 B.從里到外 C.僅擦物體表面 D.隨時清洗抹布
A.20-40℃、40%-60% B.20-30℃、40%-60% C.20-40℃、40%-70% D.10-40℃、50%-70%