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发布时间:2023-10-01 20:31:00

[单项选择]The way to reduce () is to build up a film of lubricant between any two surfaces that rub against each other.
A. friction
B. collision
C. inertia
D. resistance

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[单项选择]标有“This Way UP”字样的标签是()。
A. 仅限货机标签,表明该包装件仅限货机
B. 包装件方向向上标记,表明该包装件不得倒置
C. 远离热源标记,表明该包装件不能靠近热源
D. 磁性物质标记
[单项选择]Large crosshead type engine generally has two lubrication systems, a function performed only by cylinder oil system is()
A. lubricating
B. cooling
C. sealing
D. cleaning
[单项选择]()provides strength and strong space for fule,lubricating oil,fresh water,salt(ballast)water and potable water.
A. The double bottom
B. The cofferdam
C. The navigating bridge
D. The superstructure
[单项选择]If plastic film insulation becomes damaged in air conditioning system, () may form within the film.
A. evaporation
B. condensation
C. liquefies
D. vaporization
[单项选择]When does your father get up every morning? He()up at six.
A. get
B. got
C. gets
D. will
[单项选择]Contrary to expectations, the film was successful()when it was released.
A. currently
B. fast
C. readily
D. instantly
[单项选择]The film provides a deep()into a wide range of human qualities and feelings.
A. imagination
B. insight
C. fancy
D. outlook
[单项选择]If over a period of time, the oi1 film partially disappears, so that dry areas are formed on the cylinder wall, these areas and the piston surfaces will by frictional interaction, become finely scuffed and hardened, iegood mirror surface" will have deterioratedWhat condition of the piston rings can result in this phenomenon?()
A. micro-seizure
B. sticking
C. scratched
D. breakage/collapse
[单项选择]The girl is()of a film star.
A. somebody  
B. something  
C. anybody
D. anyone
[单项选择]Would you like to see a film?()
A. Yes, I'd love to.
B. Do it, please
C. No, you like it?
D. How do you do?
[单项选择]This is the most interesting film()I’ve ever seen.
A. that
B. which
C. what
D. when
[单项选择]Before I got to the cinema, the film()
A. had begun
B. has begun
C. is begun
D. was beginning
[单项选择]Would you be interested in seeing a film tonight?()
A. Not at all.
B. Are you sure?
C. Great! I'd love to.
D. You're welcome.
[单项选择]He()less time reading stories about film stars than before.
A. takes
B. spends
C. costs
D. pays
[单项选择]Miss Wang wanted to know()for the film.
A. why was he late
B. why is he late
C. why he is late
D. why he was late
[单项选择]In order to keep the oil film on the cylinder liner during the running-in period, the piston rings are slightly rounded()
A. on both the external and internal top edges
B. on both the external top and bottom edges
C. on both the external and internal bottom edges
D. on all the four edges
[单项选择]The film of oil between the rings and the liner is not only essential for the lubrication but also () achieving a gas seal.
A. play a great part on
B. run a role in
C. plays an important part in
D. acts as important part at

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