A.update
B.finish
C.outdated
D.expire
您可能感興趣的試卷
你可能感興趣的試題
A.Any surge occurs
B.Any surge occurred
C.Should any surge occur
D.Should any surge occurring
A.Were there loss of energy by friction
B.Since there be loss of energy by friction
C.Were there no loss of energy by friction
D.Should be no loss of energy by friction
A.The smoother；the greater
B.Smoother；less
C.The rougher；the greater
D.rougher；greater
A.in which
B.on which
C.by which
D.from which
A.examined；are not having
B.had examined；would not have
C.had examined；would not have had
D.should examine；would not have
最新試題
The cetane rating of diesel fuel is an indication of the （）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
The condensers located in various stages of a flash evaporator are cooled by（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
Using a file without a handle may result in （）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）