精密进近时，满足哪几个条件才可以预位进近方式？For precision approach, the approach mode can only be armed when what conditions are met ?

判断正误true or false: 当飞机距预选高度约1,000英尺时，高度告警系统会产生1秒声响。When the airplane is approximately 1000 feet from the selected altitude, altitude alert system will generate one-second aural tone.

判断正误true or false：自动飞行控制系统（AFCS）是自动驾驶和飞行指引仪的综合系统。The Automatic Flight Control System (AFCS) provides integration of the autopilot and flight director systems

哪些是NAV模式的信号源What are the sources for NAV mode?

判断正误true or false：当选择速度方式时，速度基准（显示在PFD上）将被设定为当前空速。When speed mode is selected, the speed reference (primary flight display) is set to the current airspeed

（ ）减少自动驾驶的增益，从而使飞行控制计算机对颠簸飞行状况的反应减慢并使飞机机动动作柔和。（ ）reduces autopilot gain so that flight control computer response to turbulent flight conditions is slowed and airplane motion is smoother.

判断正误true or false: CONFIG AP警告信息(红色)表明在地面双发转速超过70%N1时，自动驾驶处于接通状态。CONFIG AP warning (red) indicates that autopilot engaged on ground with both engines operating ＞70% N1.

判断正误true or false：在没有其它现用横向方式，且接通飞行指引仪时，自动选择横滚（ROLL）方式。Roll mode is automatically selected when no other lateral mode is active and the Flight Director (FD) is on

判断正误true or false:按压油门杆上的任一复飞（TOGA）电门会断开自驾。Pressing either go-around (TOGA) switch on a thrust lever will Disconnect the Autopilot

当FCP面板上选择了XFER按钮：With the XFER pushbutton on the FCP panel selected:

判断正误true or false: FD1 FAIL状态信息（白色）表明飞行指引1失效。FD 1 FAIL status (white) indicates that the flight director 1 has failed.