单选题
Which of the following is not true?
A
Configuration of the airplane can be changed by raising or lowering the gear, or by moving the flaps
B
The extension of the flaps causes an increase in camber for that section of the wing and produces more lift and drag
C
Flap position affects the chord line and angle of attack for the entire wing
D
Landing gear position has little or no effect on chord line or angle of attack
答案解析
正确答案:C
