A between B beforeC since D later
A between B before
C since D later
相关考题：
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It will be at least 10 days _______they finish cleaning up the typhoon-stricken village.A.untilB.beforeC.sinceD.when
They decided to chase the cow away______ it did more damage.A.although B.beforeC.until D.unless
The primary purpose of the passage is to( ) A.explain the difference between natural and man-made radiation B.arouse concern about the risks connected with exposure to radiation C.publicize the results of British medical survey D.advocate limiting the use of atomic weapons testing，since the fallout is extremely hazardous
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Based on which two conditions can master Preventive Maintenance （PM） schedules be created？（）A、 elapsed time since the target start date or completion date of previous work generated by PM B、 difference between completion date of previous work and system date is equal to Lead Time C、 elapsed time since the target start date or completion date of the latest work orders for the assetD、 metered equipment usage since the target start date or completion date of previous work generated by PME、 metered equipment usage since the target start date or completion date of the latest work order for the asset
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单选题Reducing the clearance between a valve stem and rocker arm will result in the valve （）Ahaving a shorter duration of openingBhaving a longer duration of openingCclosing soonerDopening later
单选题The relationship between number of months since the campaign began and number of website visits is ______.AzeroBnegativeCpositive
多选题Based on which two conditions can master Preventive Maintenance （PM） schedules be created？（）Aelapsed time since the target start date or completion date of previous work generated by PMBdifference between completion date of previous work and system date is equal to Lead TimeCelapsed time since the target start date or completion date of the latest work orders for the assetDmetered equipment usage since the target start date or completion date of previous work generated by PMEmetered equipment usage since the target start date or completion date of the latest work order for the asset
单选题In stopping distances of vessels，head reach can best be described as the（）.Adifference between the vessel's speed through the water at any instant and the new speed ordered on the telegraphBdistance the vessel has actually run through the water since a change of speed was orderedCdistance the vessel will run between taking action to stop her and being stationary in the waterDspeed at which a vessel should proceed to ensure that she will run a predetermined distance，once her engines have been stopped