31. 柴油機船的『缸套冷卻水』其英文為
(A) Scavenging box cooling fresh water
(B) Turbo charger cooling fresh water
(C) Piston cooling fresh water
(D) Jacket cooling fresh water

答案：登入後查看
統計： A(1), B(1), C(1), D(6), E(0) #2544602