A.setting point B.ash C.sulfur content D.carbon residues
A.1-2-3-4-5-6 B.1-2-3-6-5-4 C.1-5-3-6-2-4 D.1-3-4-5-6-2
A.the peak pressure in a cylinder B.the temperature of the cooling water C.the fuel consumption D.none of the above