單項選擇題
A.1/2 B.1/3 C.1/4 D.1/5
A.0.04 B.0.05 C.0.06 D.0.07
A.11% B.12.5% C.13% D.13.5%
A.1% B.1.5% C.2% D.2.5%
A.11.01%~11.50% B.10.51%~11.00% C.10.01%~10.50% D.11.51%~12.00%
A.400 B.300 C.200 D.100
A.篩分 B.調(diào)漿加藥 C.準(zhǔn)備 D.濃縮
A.精煤產(chǎn)量 B.精煤產(chǎn)率 C.浮選精煤數(shù)量指數(shù) D.浮選完善指標(biāo)