A:such
B:so
C:the same
D:the same a
My school isn't far from here. It's only _____ walk.
一个人骑自行车沿平直的公路行驶,第一秒内通过的路程是2m,第二秒内通过的路程是3m,第三秒内通过的路程是4m,则( )