A.4 B.5 C.6 D.7
A.泥炭、褐煤、煙煤、,褐煤,50 B.無(wú)煙煤、煙煤、褐煤,無(wú)煙煤,40 C.無(wú)煙煤、煙煤、褐煤,褐煤,40 D.硬煤、褐煤,褐煤,50
A.200ml—250ml B.250ml—300ml C.150ml—250ml D.250ml—350ml