A:Never mind.
B:Of course not
C:You’d better not.
D:No, I don’t
如图为某地等高线地形图(海拔:米),图中位于山脊的是( )
When we were in Anhui, we took many photos ________ Mount Huang.
如图是运动员在投掷铅球时的瞬间动作,解释这个动作完成的原理,错误的是( )