A:c<b<a
B:c<a<b
C:a<b<c
D:b<c<a
If you can give the ____ (correction) questions, you will get a gift from the host.
决定平抛物体在空中运动时间的因素是( )
如图,在矩形ABCD中,P为AD上一点,连接BP,CP,过C作CE⊥BP于点E,连接ED交PC于点F.