A. 当飞机空速大于50节时,AC BUS1或AC BUS2失效 B. 当飞机空速大于100节时,DC BUS1或 AC BUS2失效 C. 当飞机空速大于100节时,AC BUS1和AC BUS2失效 D. 当飞机空速大于100节时,AC BUS2或AC ESS BUS失效
A. that you said B. which you said C. all what you said D. what you said