As the title says, two objects are exactly the same, and the weight of the objects is the same.

Suspended in liquid a and floating in liquid b, the buoyancy is equal, which is equal to the weight of the object;

∫F float =ρ liquid v discharges G, and the volume of discharged liquid A is greater than that of discharged liquid B,

∴ ρ A

∫p =ρGH, the liquid levels of the two containers are equal,

∴ The pressure of liquid in container A at the bottom is less than that in container B, that is, P A < P B. 。

So choose a.