A.Ⅲ級鈣質(zhì)消石灰 B.貝殼石灰 C.珊瑚石灰 D.有效鈣含量大于20%的消石灰
A.60% B.65% C.70% D.75%
A.Ⅱ級鈣質(zhì)消石灰 B.Ⅱ級鎂質(zhì)生石灰 C.Ⅲ級鈣質(zhì)消石灰 D.Ⅱ級鈣質(zhì)生石灰