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单选题
That portion of the systems which controls the position and movement of the spoilers, drag devices and variable aerodynamic fairings. Includes items such as control handles, cables, warning systems, linkages, spoilers, drag devices, position indicators, etc.
A
Adjust the components of spoiler, resistance device and variable pneumatic fairing. It includes control handle, cable, warning system, linkage device, spoiler, towing device, position indicator and other components.
B
This system is responsible for regulating the movement and position of the spoilers, drag devices and variable aerodynamic fairings. Components involved include control handles, cables, warning systems, linkages, spoilers, drag devices, position indicators, etc.
C
They control the changes of spoilers, resistance devices and variable pneumatic fairing. It includes control handle, cable, warning system, linkage device, spoiler, towing device, position indicator and other components.
答案解析
正确答案：B
