The APU starter starts when
A、WhenthemasterswitchisON
B、WhenthemasterswitchandthestarterareON
C、ThemasterswitchandthestarterswitchareONandtheintakevalveisfullyopen
D、ThemasterswitchandthestarterswitchareONpositionandtheintakevalveisopen
发布时间：2025-11-30 05:34:21
