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单选题
如果SFECU的一个通道失效，或者一个PDU马达失效，缝翼和襟翼：If a single channel of the SFECU fails, or a PDU motor fails, the slats/flaps:
A
正常运转will operate normally
B
继续运转但速度减半will continue to operate but at half speed
C
马达的电源被移除have electrical power removed from the motors
D
回到中立位置will return to the neutral position
答案解析
正确答案：B
