这个英语题为什么选D不选B
问题描述：
这个英语题为什么选D不选B
By nine o'clock,all the Olympic torch bearers had reached the top of Mount Qomolangma,( )appeared a rare rainbow soon.
A of which
B on which
C from which
D above which
答
on 作“在……上面”时,一般指紧贴着的,像某个东西紧靠在某个物体上面
above不一定在正上方,一般不接触.像固定用法the plane is flying above the ground