“Mobile belt conveyors” is a vehicle which can lift _______ up to aircraft, and be raised at both ends.
A.passengers
B.baggages
C.fuel
D.air crew
正确答案是B
“Mobile belt conveyors” is a vehicle which can lift _______ up to aircraft, and be raised at both ends.
A.passengers
B.baggages
C.fuel
D.air crew
正确答案是B