______(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