Aspect ratio is the span of the wing, wingtip to wingtip, divided by the _______ .
A.length of the wing
B.average chord
C.average thickness of the wing
D.area of the wing
正确答案是B
Aspect ratio is the span of the wing, wingtip to wingtip, divided by the _______ .
A.length of the wing
B.average chord
C.average thickness of the wing
D.area of the wing
正确答案是B