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单选题
什么条件下，地面减升系统会自动预位What conditions automatically arm the ground lift dumping system?
A
油门杆必须设置在起飞推力，机轮承重thrust levers must be set at takeoff power with weight-on-wheel
B
扰流板控制电门在自动位置和左或右油门杆在TOGA卡位或之上位置Spoiler control switch is in AUTO and left or right thrust lever is at or above TOGA detent position
C
扰流板控制电门在人工预位的位置和N1前推至起飞推力Spoiler control switch is in MAN ARM and N1 is advanced towards takeoff power
D
N1必须设置在起飞推力和扰流板控制电门设置在人工预位N1 must be set at takeoff power and spoiler control switch is set at MAN ARM
答案解析
正确答案：B
