A.瘦煤B.氣煤C.肥煤D.焦煤
A.煤的可浮性差B.煤的可浮性好C.煤的親水性強D.煤的疏水性弱
A.69.72%、83.85%、易浮B.69.72%、83.85%、極易浮C.69.73%、83.86%、易浮D.69.73%、83.86%、極易浮
