--Yes, I'm still wondering how I can go there.
A:else something
B:something else
C:else anything
D:anything else
从高空中自由落下一个小球,经过10s后小球落到地面,取g=10m/s2,求:
“封建亲戚,以藩屏周”反映的政治制度是西周的( )