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单选题
应急襟翼放出电门会（CRJ900）:The emergency flap deploy switch will(CRJ900):
A
从可用汇流条重新给襟翼马达供电且将其移动到已选位置。Redirect power to flap motors from operational busses and moves them to selected position.
B
放出缝翼和襟翼到20度。Extend the slats and move the flaps to 20 degrees
C
完全放出缝翼，襟翼不动。Fully extend the slats and not move the flaps.
D
缝翼收起且放出襟翼到20度。Leave the slats retracted and extend the flaps to 20 degrees.
答案解析
正确答案：B
