A.0~0.35% B.0.35%~0.50% C.0.35%~0.65% D.0.65%~0.80%
A.質(zhì)量分?jǐn)?shù) B.體積分?jǐn)?shù) C.摩爾分?jǐn)?shù)
A.1~2 B.2~3 C.3~4 D.4~5