下列数据最符合实际的是( )
图甲为“某地貌景观图”。为解释该景观的主要成因,教师在教学时进行了如图乙的演示。读图,完成以下问题。
He used to _____ in a village, but now he has been used to _____ in the big city.
—What's that?—It's a .