“SPD BRK STILL OUT”信息提醒机组注意() ["A、减速板在正常放出位","B、减速板放出,而至少一台发动机不在慢车位","C、减速板在低空放出"]
移动通信的工作方式有()种。 ["1","2","3","4"]
“呼和浩特铁路局”,电报办理所略号是()。 ["A、HHC","B、HC","C、HH","D、BTC"]
“太原铁路局”,电报办理所略号是()。 ["A、LV","B、TYV","C、DV","D、TV"]
在着陆时,当通过30英尺:() ["A、姿态被储存","B、姿态在8秒内逐步减小到机头下俯2度","C、A和B"]
电缆室外部分,一定要在接触部位增加()。易晃动部分必须用固定件紧固或扎紧;