暖锋前的锋面雾形成的原因是

判断正误True or False：ACSC工作通道显示在EICAS上。The active ACSC channel is displayed on EICAS.

＇L BLEED LOOP＇警戒信息指示：＇L BLEED LOOP＇ caution message indicates:

＇L BLEED DUCT＇警告信息和音响警告＇Bleed Air Duct＇指示：＇L BLEED DUCT＇ warning message and aural warning＇Bleed Air Duct＇ indicates:

判断正误True or False：驾驶舱内没有对引气泄漏探测系统的控制。There are no flight deck controls for the bleed air leak detection system.

当选择一个ENG FIRE PUSH（火警按压）电门时，相应的（ ）将关闭。When an ENG FIRE PUSH switch/light is selected, the respective （ ）close.

引气泄漏探测系统是什么时候测试？When was the leak detection system tested？

机翼前缘装有（ ），用来探测机翼防冰管路或管路接头的故障。In the wing leading edges, （ ）are used to detect the failure of a wing anti-ice duct or duct connector.

判断正误True or False：在自动模式（AUTO）下，APU负载控制活门（LCV）内锁保护功能防止APU向防冰系统提供引气。In AUTO, APU LCV Interlock Protection function prevents the APU from supplying bleed air to the anti-ice systems.

判断正误True or False：APU负载控制活门（LCV）内锁保护功能不允许发动机和APU同时向引气总管供气。APU LCV Interlock Protection function will not allow the engines and APU to supply the manifold at the same time.

判断正误True or False：当飞机在地面上，双发和APU都在运转时，APU总是优先向飞机气源系统提供引气。On the ground, with both the engines and APU running, the APU always has priority in supplying the bleed air for the aircraft pneumatic systems.