An electric _______ provides fuel under pressure for engine starting and as a backup, should the engine e-driven pump malfunction.
A.fuel pump system
B.fuel-injection system
C.boost pump
D.gravity-feed system
正确答案是C
An electric _______ provides fuel under pressure for engine starting and as a backup, should the engine e-driven pump malfunction.
A.fuel pump system
B.fuel-injection system
C.boost pump
D.gravity-feed system
正确答案是C