A:1 ∶1
B:3 ∶5
C:2 ∶3
D:3 ∶2
中国的诗词歌赋、名言警句常常蕴涵着丰富的哲理。下列选项中,两者都蕴涵量变引起质变哲理的是( )
Chinese athletes did a great job in 2012 London Olympics. It can encourage post-90s(90后) _______.