平时是不是一直要有一架空客在旁边待机，好在C919出问题时补上？

来源: cowpi 于 2023-06-12 05:26:47 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.