513 选项: A:In flight or on ground. B:Only on ground, except for the FCU safety test which can be performed in flight or on ground._x000D_只能在地面,除FCU的安全测试在空中和地面都可以测试。 C:Only on ground, except for FMGC safety text which can be performed only in flight. 安全 都可以 地面 发布时间:2024-06-03 11:14:55