单选题Longitudinal and transverse separtions between the tanks,which are used to prevent liquids from leaking from one double bottom tank into the other ,are called（）.Adouble bottomsBcofferdamCnavigating bridgeDsuperstructure
单选题
Longitudinal and transverse separtions between the tanks,which are used to prevent liquids from leaking from one double bottom tank into the other ,are called（）.
A
double bottoms
B
cofferdam
C
navigating bridge
D
superstructure
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