A.any problem
B.some problem
C.any problems
D.some problems
您可能感興趣的試卷
你可能感興趣的試題
A.did not interrupt
B.were not interrupted
C.had not interrupted
D.had not been interrupted
A.hand it over
B.take it over
C.carry it over
D.carry it out
A.help
B.good
C.use
D.worth
A.to keeping you
B.to kept you
C.to have kept you
D.kept you
A.will do
B.has done
C.had done
D.will have done
最新試題
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the()
Which one is NOT the ‘clear grounds’ for a more detailed inspection?()
Flame failure in an automatically fired auxiliary boiler can from a/an ()
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated()
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.
Which of the following items don’t belong to dock repair works?()
If two A.C.generators are to be operated in parallel, the load is distributed evenly by()
If separating effect is not good, which measure should be taken ()
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?()