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发布时间:2023-10-21 15:13:43

[单项选择]The crankcase can not be opened ()the parts have been cooled down.
A. if
B. as
C. unless
D. when

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[单项选择]If the ordered spare parts have been modified by manufacturer, which of the following should be pay attention to?()
A. quality
B. reliability
C. price fluctuating
D. applicability
[单项选择]I’ll have the damaged parts repaired in Hongkong and send you in due course the amount of expenses().
A. incurred
B. happened
C. spent
D. paying out
[单项选择]You don't have to show()to me. You can have your own ideas.
A. attachment
B. aggression
C. submarine
D. submission
[单项选择]The oil pressure and flow from each bearings can be checked when()
A. the lubricating pumps are stopped and the access doors are opened
B. the lubricating pumps are running and the access doors are opened
C. the engine is running and the access doors are closed
D. the engine is stopped and the access doors are closed
[单项选择]Those cakes look nice. Can I have()?
A. one
B. it
C. – (不填)
D. one cake
[单项选择]The amount of fluid delivered by a gear pump can be regulated by ().
A. throttling the pressure line
B. changing the speed of the rotor
C. either A or B
D. None of the above is true
[单项选择]A computer can only do()you have instructed it to do.
A. how
B. after
C. what
D. when
[单项选择]Can I have a look at your letter, please?()
A. Excuse me, you can't
B. I'm afraid you can't 
C. I can't agree with you
D. Yes, thank you
[单项选择]If you()stop smoking, you can only expect to have a bad cough.
A. won’t
B. wouldn’t
C. don’t
D. can’t
[单项选择]When out of sight of land, a ship’s position can be found by using().
A. the coastal navigation
B. the celestial navigation
C. traditional navigation
D. the great circle navigation
[单项选择]A:()time do you have lunch? B: I usually have lunch at 12.
A. Where
B. What
C. When
[单项选择]I have made()mistakes in my writing so that I can ask my students to find and correct them.
A. false
B. intensive
C. deliberate
D. accidental
[单项选择]()I enjoy most is()I can have a holiday from work.
A. That;that
B. That;what
C. What;what
D. What;that
[单项选择]Don't worry, your watch()and you can have it in no time.
A. is repaired
B. has been repaired
C. was repaired
D. is being repaired
[单项选择]Can I get you a drink?()But I have already got one
A. That's very nice of you
B. No, you don't have to
C. Yes, please 
D. With pleasure
[单项选择]

Continuous surging of turbocharger can be caused by()
①crash stop of engine
②increased back pressure after T-Ch
③fouled or damaged turbine nozzle ring


A. all are correct
B. ②and③are correct
C. none of the above is correct
D. ①only is correct
[单项选择]The humidity of the atmosphere can be determined by the use of the()
A. anemometer
B. potentiometer
C. manometer
D. psychrometer
[单项选择]The receiving stations can use the B2 character to()different, classes of messages.
A. identify
B. Correct
C. Reject
D. Print out

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