更多"[单选题]We have finished the oil sampl"的相关试题:
[单选题] You have completed a crude oil wash．What action should be taken with the oil in the lines running to the washing machines ________．
A.Open a COW nozzle forward and one aft and drain the line into the after tank by gravity
B.Blow the line out using compressed air
C.Pull a suction using the supply line pump
D.Close off all valves in the system and leave the oil in the line primed for the next crude oil wash
[单选题] —Have you finished your speech?
—No. Last night I was writing _____ I heard someone shouted “Help”.
A.until
B. while
C. if
D. when
[单选题] _____ we have enough money, we won’t buy any useless things.
A. Since
B. Until
C. Because
D. Although
[单选题] If we _____ the earlier bus, we might have arrived here on time yesterday.
A. took
B. would take
C. had taken
D. take
[单选题]We have planned to remove the pistons when the vessel Dalian.
A.call to
B.calls to
C.calls at
D.calls on
[单选题]Unfortunately,we now have plenty of_( )_ that many chiidren do not do half as well on testas they actually could if they tried.
A. evidence
B. blocks
C. suitability
D. instruction
[单选题]We engineers and motormen have a lot of machines and equipment ___every day.
A.to be cared
B.to take care of
C.care
D.to be taken care of
[单选题]When we say the two objects have relative motion,we mean___.
A.the distance between them remains the same
B.the distance between them is changing
C.the positions of either of them to the earth remain the same
D.their positions to the earth remain the same.
[单选题] She is very dear to us. We have been prepared to do _____ it takes to save her life.
A. whichever
B. however
C. whatever
D. whoever
[单选题] We have never seen her again _____ she went to work in another city.
A. when
B. as
C. since
D. while
[单选题] We have been asked to __( )__ the news to all our friends.
A. say
B. spread
C. make
D. give
[单选题] This is the biggest lab _____ we have ever built in our university.
A. which
B. what
C. that
D. where
[单选题] When discharging oil from an oil tanker the instantaneous rate ______ 60 liters per nautical mile．
A.Should not exceed
B.Must be up to
C.Should exceed
D.Should be about
[单选题]The fuel oil supply system usesto draw oil from the double bottom tanks to a settling tank.
A.a supply pump
B.a centrifugal pump
C.a transfer pump
D.a reciprocating pump
[单选题] Oil slick caused by spillage of oil from tanker ship is ______．
A.A drop of oil
B.The emulsion of oil at sea surface
C.The weathered oil
D.The oil floating on the surface of the sea water
[单选题] We want to go to Japan to have a _____ study.
A. farther
B. farthest
C. further
D. furthest
[单选题] —Has your sister finished the composition yet?
—I have no idea. She _____ this morning.
A. wrote
B. has written
C. had written
D. was writing
[单选题] Having finished her project, she was invited by the school _____ to the new students.
A. speaking
B. having spoken
C. to speak
D. to have spoken
[单选题]If lubricating oil encounters high temperature it can burn,leaving as it does so
A.carbon deposit
B.rust deposit
C.acidic deposit
D.ash deposit
