A.benzene B.tar C.middle oil D.toluene
A.Replace the batteries B.Check the sampling tube for blockage C.Adjust the final reading by the amount the needle is displaced from zero D.Replace the platinum filament
A.either B.the master C.the Shipowner D.neither
A.on B.in C.at D.with
A.under deck B.on deck C.ondeck only D.under deck only
