雷暴来临之前，地面风是向吹去

判断正误True or False：EICAS对气源系统和引气泄漏探测系统的信息显示在主页、状态页、环境控制系统（ECS）以及防冰（ANTI-ICE）简图页中。EICAS indications for the pneumatic and leak detection systems are provided on the primary page, status page and the ECS and ANTI-ICE synoptic pages.

判断正误True or False：APU电子控制组件（ECU）控制APU LCV的打开、关闭及调节。The APU ECU controls the opening, closing and modulation of the APU LCV.

判断正误True or False：通过调节隔离活门来控制APU输出的引气流量。The isolation valve（ISOL） is modulated to control the amount of bleed air taken from the APU.

判断正误True or False：引气总管位于发动机吊架和后设备舱内。The bleed air manifold is located in the engine pylons and aft equipment bay.

判断正误True or False：当APU关车、ECU或ACSC信号丢失时，APU负载控制活门关闭。APU shutdown or the loss of the ECU or ACSC signal closes the APU LCV.

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.