______(通气通道) and vent tube make the pressure of all the fuel tan

______(通气通道) and vent tube make the pressure of all the fuel tanks equal to the pressure in the_____ (通气油箱).

A.Vent channels,surge tanks

B.vent tubing ,fuel tank

C.vent scoop ,surge tanks

D.vent scoop,vent tank

正确答案是A