相关题目
（ ） extend outward from the fuselage to the midpoint of each wing, they always move in the same direction.
（ ） extend from about the midpoint of each wing outward to the tip, they move in opposite directions.
Besides being a common attachment point for the other major components, the （ ） houses the cabin, or cockpit, which contains seats for the occupants and the controls for the airplane.
Airplanes with two sets of wings are referred to as （ ） ．
Airplanes with a single set of wings are referred to as （ ） ．
The （ ）of a gas turbine is the place where fuel and air mix properly.
The aileron on modern civil aircraft consists of inner aileron and outer aileron. The outer aileron is suitable for（ ）.
The （ ） is attached to the back of the horizontal stabilizer.
The （ ） is mounted at the back of （ ）．
The （ ） is attached to the back of the （ ） ．
