In a diesel engine, a cylinder liner should be replaced if it is () Ⅰ.Scuffed Ⅱ.Scored
A:Ⅰ only is correct
B:Ⅱ only is correct
C:both Ⅰ and Ⅱ are correct
D:neither Ⅰ or Ⅱ are correct
出自:海船船员证