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单选题
The FIRST thing to do to ensure that a refrigeration unit will not start while undergoing repairs, is to （）.
A
secure and tag the electrical circuit
B
place a crow bar in the flywheel of the unit
C
inform all persons in the area not to start the unit
D
make a log book entry
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更多 “单选题The FIRST thing to do to ensure that a refrigeration unit will not start while undergoing repairs, is to （）.A secure and tag the electrical circuitB place a crow bar in the flywheel of the unitC inform all persons in the area not to start the unitD make a log book entry” 相关考题
考题
The FIRST thing to do to ensure that a refrigeration unit will not start while undergoing repairs, is to _____.A.secure and tag the electrical circuitB.place a crow bar in the flywheel of the unitC.inform. all persons in the area not to start the unitD.make a log book entry
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When adding oil to a refrigeration system, precautions must be taken to ensure thatA.the compressor suction pressure is not too highB.all air is purged from the pump and charging fittingsC.the high pressure cutout switch is held open to prevent accidental startingD.the condenser is completely shutdown first
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A.B.C.D.
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Unit testing refers to that each ( ) is tested to ensure that it operates correctly.A.subsystem
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Some young soldiers who had recently joined the army were being trained in modern ways of fighting,and one of the things they were shown was how an unarmed man could trick an armed enemy and take his weapon away from him．First one of their two instructors took a knife away from the other,using only his bare hands;and then he took a rifle away from him in the same way．After the lesson,and before they went on to train the young soldiers to do these things themselves,the two instructors asked them a number of questions to see how well they had understood what they had been shown．One of the questions was this:“Well,you now know what an unarmed man can do against a man with a rifle．Imagine that you are guarding a bridge at night,and that you have a rifle．Suddenly you see an unarmed enemy soldier coming towards you．What will you do?”
The young soldier who had to answer this question thought carefully for a few seconds before he answered,and then said,“Well,after what I have just seen,I think that the first thing I would do would be to get rid of my rifle as quickly as I could,so that the unarmed enemy couldn't take it from me and kill me with it!”
The young soldier told the instructor that__．A.the important thing was to be brave
B.the important thing was to save your life
C.the important thing was to have a gun
D.the important thing was to know the trick
考题
To qualify for a promotion, （）to exceed the quota.Athe best thing he could do wasBhe did his bestCall he could do wasDhis best thing was
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考题
To qualify for a promotion, （）to exceed the quota.A、the best thing he could do wasB、he did his bestC、all he could do wasD、his best thing was
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Which of the following is the FIRST thing a technician should do before putting their hand inside a computer case?（）A、Acquire the appropriate tools that are going to be used.B、Touch the case to discharge static.C、Remove loose jewelry.D、Refer to manufacturer documentation.
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Lightening causes a power surge and leads to a fire in the datacenter. Following emergency procedures， which of the following is the FIRST thing the server administrator should do？（）A、Turn off all electrical powerB、Remove all backup mediaC、Implement fire suppressionD、Evacuate all personnel
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When replacing a laptop keyboard, the FIRST thing that Bob, a technician, should do is remove:（）A、the battery.B、the memory cover and memory sticks giving access to the screws holding the keyboard in place.C、the top bezel covering the screws holding the keyboard in place.D、the AC power.
考题
Which of the following will begin a new unit of work?（）A、The CONNECT statementB、The first FETCH of a cursorC、The BEGIN TRANSACTION statementD、The first executable SQL statement
考题
单选题When adding oil to a refrigeration system, precautions must be taken to ensure that （）.A
the compressor suction pressure is not too highB
all air is purged from the pump and charging fittingsC
the high pressure cutout switch is held open to prevent accidental startingD
the condenser is completely shutdown first
考题
填空题Your first thing to do in the job-crafting process is to think about your job wholly.____
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考题
单选题Before charging a refrigeration unit, the refrigerant charging lines should be（）A
flushed with clean refrigerant oilB
purged with the refrigerantC
washed with an ammonia and alcohol solutionD
grounded to compressor
考题
单选题Before writing a book, the first thing is considering what to say.A
you must first ponder what to say and what not to be said carefullyB
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the first thing is to consider what to sayD
you must first ponder what to say and what not to say
考题
问答题Practice 7 (1) Today’s wealthy parents perhaps realize their riches can be more of a heavy load than a happiness to their children. (2) So the first thing for them to consider is to ensure that their families are as rich in love as they are in money.
考题
单选题The first and most important thing parents should do to help their children is _____.A
to provide them with a safer environmentB
to lower their expectations for themC
to get them more involved sociallyD
to set a good model for them to follow
考题
单选题In order to（）the disease, the first thing we should do is to do research about it and find out a satisfactory cure.A
confirmB
conductC
controlD
confuse
考题
单选题An administrator installs a driver,reboots the DC, and logs in to configure the NIC. Once the administrator opens the NIC properties, the server bluescreens and now will no longer boot into Windows. Which of the following is the FIRST thing the administrator should do?（）A
Boot into Last Known Good ConfigurationB
Reseat the NICC
Boot into Safe ModeD
Boot into Directory Services Restore Mode
考题
单选题The pressure range between the system cut in and cut out pressures in a refrigeration unit is known as（）A
opposing operational dragB
pressure distributionC
differentialD
system purge
考题
单选题When a refrigeration compressor motor fails to start, the FIRST thing that should be checked for is a （）.A
loose expansion valve control bulbB
low differential setting on the H-PcutoutC
blown fuse in the motor circuitD
faulty suction pressure regulator
考题
单选题For use as protection from gas leaking from a refrigeration unit，each ship must be equipped with a（）.A
portable ventilation systemB
flame safety lampC
self-contained breathing apparatusD
gas mask
考题
单选题To qualify for a promotion, （）to exceed the quota.A
the best thing he could do wasB
he did his bestC
all he could do wasD
his best thing was
考题
单选题The first thing for you to do before you buy clothes is to read the labels inside the clothes.A
Right.B
Wrong.C
Doesn’t Say.
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