A. 正确 B. 错误
A. PACK电门/灯的操作,FLOW MODE电门/灯的操作 B. 二级热交换器超温(220℃) C. 引气总管(MAIN DUCT)超温(265℃)超压(41psi)时 D. 以上都对
A. as soon as practicable on leaving port B. prior to departure C. within 24 hours of departure D. within 12 hours of departure