（ ）海里之前，飞机位置正常，方向可以正常控制，禁止手扶前轮转弯手柄，防止大速度时误动前轮转弯手柄，产生方向突变，损伤前轮机构和轮胎，甚至侧滑和方向失控。Before ( ) knots, aircraft position is normal, the direction can be controlled normally, it’s forbidden to touch nose wheel tiller in order to prevent sudden direction change at large
speed due to moving the nose wheel tiller accidently, it can result in damage of nose wheel assembly and wheel, furthermore, sideslip and loss of direction control.

判断正误true or false:自动模式转换到半坡度发生在31,600英尺.The automatic mode transition to Half Bank will occur at 31,600 feet.

判断正误true or false: 一旦高度截获（截获选择高度）时，速度方式不再生效。Upon altitude capture of the selected altitude, the speed mode is disabled.

判断正误true or false: 复飞方式产生一个8度的上仰指令。Go-around mode generates an 8 degree pitch-up command.

判断正误true or false: 当选择速度方式时，第一次选择接通CLB或DES方式，第二次选择接通IAS方式。When push the speed mode, first selection engages CLB or DES, second selection engages IAS mode.

（ ）用于接通和断开颠簸方式。（ ）used to engage and disengage turbulence mode.

判断正误true or false: 起飞（TOGA）方式产生一个固定度数的上仰指令。The vertical take-off mode generates an fixed degree pitch up command.

按压油门杆上的任一复飞（TOGA）电门会：Pressing either go-around (TOGA) switch on a thrust lever will:

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?