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单选题
地面减升期间以下哪些操纵面会运转？Which of the following surfaces operate during ground lift dumping?
A
只有地面扰流板Ground spoiler only
B
地面和内侧多功能扰流板Ground and inboard multifunction spoiler
C
所有多功能扰流板和地面扰流板All multifunction spoiler and ground spoiler
D
地面和外侧多功能扰流板Ground and outboard multifunction spoiler
答案解析
正确答案：C
