升力系数。
参考答案:
物体所受到的升力与气流动压和参考面积之比。
若a满足(383-83)2=3832-83×a,则a值为( )
A.83
B.383
C.683
D.766
There are so many things I wish I had known while _____ up
A.grow
B.growing
C.grown
D.grew