A. went out
B. went in
C. went up
D. went away
( ) They were about to leave the house when they heard a fire alarm screaming be
[单选题]An electric heater built into some smaller diesel engines is used to ().A . raise lube oil viscosity for easier starting in cold weatherB . increase air inlet temperatureC . increase compression ratioD . increase jacket water temperature for easier s
[试题]Whenafire____attheNationalExhibitioninLondon,atleasttenpricelesspaintingswerecompletelydestroyed.(A)brokeoff(C)brokedown(B)brokeout(D)brokeup
[单选题]When the refrigeration demand is small,_______.A.the expansion valve will move toward the wide open positionB.the expansion valve will move toward the closing positionC.the feeler bulb will conveys the high temperatureD.the superheat degree will rais
[主观题]Whentherearesmallchildrenaround,itisnecessarytoputbottlesofpillsoutof_____.(A)reach(C)hold(B)hand(D)place
[单选题]Whentherearesmallchildrenaround,itisnecessarytoputbottlesofpillsoutof_____.(A)reach(C)hold(B)hand(D)place
A fire is considered “under control” when ______.A. all hands are at their fire
It is said that what ______ the big forest fire was a small cigarette butt.A. le
[单选题]When fire pumps are used for other than firefighting service,each pipe connecting the other service (except for branch lines used for deck washing) must have a().A . check valve installed in the lineB . shut off valve at a manifold near the pumpC . q
Seven people were caught in the big fire that broke out on Friday,four of ______