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单选题
当可操纵副翼一侧的飞行员选择亮着的ROLL SEL 电门时，会发生什么？What happens when the pilot with the operable aileron selects the illuminated ROLL SEL switchlight?
A
控制钢索分离，任一飞行员控制一个副翼和一个扰流副翼The control cable is split and each pilot controls an aileron and a spoileron.
B
横滚操纵由一个副翼和2个扰流副翼提供。Roll control is provided by one aileron and both spoilerons.
C
飞行员控制本侧副翼和对侧扰流副翼。The pilot controls the onside aileron and the cross-side spoileron.
D
SSCU 自动给飞行员提供两侧副翼和扰流副翼。The SSCU automatically provides the pilot with both ailerons and spoilerons.
答案解析
正确答案：B
