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Scrapers are used to ()the rust on the plates.
- A、remove
- B、move
- C、shift
- D、water
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更多 “Scrapers are used to ()the rust on the plates.A、removeB、moveC、shiftD、water” 相关考题
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Icebergs are parts of glaciers that break off, () into water, float about awhile, and finally melt.
A、mobileB、driftC、shiftD、rotate
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I'm going to do all I can to ______ the unpleasant impressions you have of me.
A. removeB. moveC. getD. leave
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The following tells us how to reuse the used water.Which is the right order of the passage A.to have the used water filtered
B.to put chemicals in it
C.to pipe it to the users
D.to pipe the used water to be purified to a factory
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The water we drink and use is running short in the world.We all have to learn how to stop wasting our limited water.One of the steps we should take is to find ways of reusing it.Experiments have already been done in this field.
Today in most large cities,fresh water is used only once,then it runs into waste system.But it is possible to pipe the used water to a purifying factory.There it can be filtered and treated with chemicals so that it can be used again,just as it were fresh from a spring.
But even if every large city purified and reused its water,we still would not have enough.Then we could turn to the oceans.All we’d have to do to make use of the seawater on earth is to get rid of the salt.This process is called desalinization,and it is already in use in many parts of the world.
The way to stop wasting our limited water is to________.A.do experiments with water
B.purify the used water and reuse it
C.use fresh water once again
D.make use of seawater
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There wouldn’t be enough water for us if we didn’t_________.A.turn to the oceans for more water
B.reuse used water and make use of seawater
C.desalt seawater
D.take steps to reuse all water on earth
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oleumD
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单选题What is head tank in the closed cooling water system used for?()A
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Primer is used for sea water tanks and double bottom tanks.B
Cement wash is used for fresh water tanks and double bottom tanks.C
Varnish is used for fresh water tanks and double bottom tanks.D
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The fuel oilB
The lube oilC
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单选题Oil water separators are used to ensure that ships don’t discharge oil when () bilge water.A
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it pumping out
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单选题The pot _____ for _____ hot water.A
used; keepingB
was used; keepingC
is used; to keepD
are used; keep
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