题目内容
(请给出正确答案)
[单选题]
2、目前商船的主机是以船舶____为主.
A.内燃机
B.船舶柴油机
C.蒸汽机
D.汽轮机
答案
船舶柴油机
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A.内燃机
B.船舶柴油机
C.蒸汽机
D.汽轮机
第4题
A.蒸汽机船60-90s,汽轮机船90-120s,内燃机船120-180s
B.内燃机船60-90s, 蒸汽机船90-120s,汽轮机船120-180s
C.汽轮机船60-90s,蒸汽机船120-180s,内燃机船90-120s
D.蒸汽机船60-90s,内燃机船90-120s, 汽轮机船120-180s
第5题
A.蒸汽机船60-90s,汽轮机船90-120s,内燃机船120-180s
B.内燃机船60-90s, 蒸汽机船90-120s,汽轮机船120-180s
C.汽轮机船60-90s,蒸汽机船120-180s,内燃机船90-120s
D.蒸汽机船60-90s,内燃机船90-120s, 汽轮机船120-180s
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