A. will be succeeded B. succeeded C. would be successful D. were success
A. 允许任一台发动机使用任一油箱内的燃油 B. 当抽油时,可把某一油箱的燃油抽到其它油箱里 C. 当加油时,能确保油箱内燃油达到所希望的油量 D. 以上都错