【单选题】 The inner bottom is the【】.
Atank top
Bcompartment between the tank top and shell of the vessel
Cinner side of the vessel's shell
Dspace between two transverse bottom franges
【单选题】 The inner bottom is the【】.
Atank top
Bcompartment between the tank top and shell of the vessel
Cinner side of the vessel's shell
Dspace between two transverse bottom franges