你可能感兴趣的试题
was to be held has been held will be held is being held
darkness daylight simulated engine-room all of the above
discharge exhaust gases and smoke furnish energy to the turbocharger reduce engine room noise all of the above
was to be held has been held will be held is being helD.
was to be held has been held will be held is being held
will be held will held was to be held is being held
was held will be held is being held has been held
They should wear safety shoes They should wear ear protection They should not wear jewelry All of the above
at each control station in the chief engineer ’s quarters in the captains quarters All of the above are correct
in reality above all after all in return
was held will be held is being held has been held
In crews accommodation spaces On the navigating bridge In the engine room All of the above
oil leakage in engine-room hot work （welding, cutting, etc.） static electricity All of the above
for the release of air from the cooling water providing expansion room for heated cooling water a place for implementing water and water treatment agent all of the above
was to be held has been held will be held is being held
was to be held has been held will be held is being held
is holding is being held is to be held is to hold
湘公网安备 43130202000226号