皮皮学,免费搜题
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搜题
【单选题】
短波通信主要靠哪种方式进行?
A.
电离层对电磁波的折射。
B.
电离层对电磁波的反射
C.
电磁技的直线传播。
D.
电磁波的地面传输。
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【判断题】配碘溶液时加碘化钾的主要目的是为了助溶。()
A.
正确
B.
错误
【简答题】20114 Q1:( ) A. Chief engineer. B. Second engineer. C. Third engineer. D. Fourth engineer. Q2:( ) A. Charging air pressure of main engine is too high. B. Charging air temperature o...
【单选题】Who is in charge of the auxiliary engine ?
A.
The chief engineer
B.
The second engineer
C.
hird engineer
D.
The fourth engineer
【单选题】On regular inspections of alternator windings it is found that windings are always covered with a heavy oil film coming from the atmosphere surrounding the auxiliary engine. After cleaning with an app...
A.
Improve material of intake air filters.
B.
Take no additional action.
C.
Blank off intake air filters.
D.
. Re-insulate the windings after each cleaning.
【单选题】题干: 互见中,两艘机动船航向交叉,相互驶近,在形成碰撞危险前,有他船位于本船左舷的船舶:
A.
可以采取任何行动
B.
应避免向左转向
C.
应保速保向
D.
应采取最有助于避碰的行动
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【简答题】Have you ever served the auxiliary engine to combustion heavy oil? What should be borne in mind when transferring oil; from heavy oil to light oil?
【单选题】The auxiliary engine and a.cgenerator can be connected with _____.
A.
cam
B.
crosshead
C.
bulge
D.
coupling
【单选题】Q: What type is the auxiliary engine?
A.
A two-stroke low speed diesel engine.
B.
A four-stroke medium speed diesel engine.
C.
A two-stroke medium speed diesel engine.
D.
A four-stroke low speed diesel engine.
【单选题】汉代学者王充认为,构成世界的基本元素是( )。
A.
元气
B.
阴阳
C.
五行
D.
八卦
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