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【单选题】
A: Utopia. This is Port Control. What is on fire? Over.B: Port Control. This is Utopia. Cargo hold is on fire. Over Q: What is on fire on board Utopia?A.
here is a fire in cargo hold.
B.
here is a fire in engine room.
C.
here is a fire on bridge.
D.
here is no fire on board Utopia at all.
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【单选题】We’ve had problems supplying some of our retail _________.
A.
outlets
B.
chains
C.
points
【单选题】The crank-pin bearings are made of___
A.
alloy steel
B.
resistance heat steel
C.
cast steel
D.
cast iron
【简答题】曲柄销 crank pin
【单选题】Excessive clearances in the main or crank-pin bearings will sometimes be indicated by _____ before any bearing knock is heard.
A.
loss of flow in the fuel system
B.
loss of pressure in the air system
C.
loss of flow in the lubricating system
D.
loss of pressure in the lubricating system
【单选题】在“中学为体,西学为用”的思想指导下,我国从清末开始试图建立现代学制,在颁布的诸多学制中,第一次颁布的现代学制是( )。
A.
壬寅学制
B.
癸卯学制
C.
壬子癸丑学制
D.
壬戌学制
【单选题】The crank pin journal is provided with large bores for _____.
A.
lubrication
B.
cooling
C.
balancing purpose
D.
ventilation
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