欢迎来到牛牛题库网 牛牛题库官网
logo
全部科目

单项选择题

Petroleum is a result of the()of plant or animal matter in areas which are slowly subsiding.

A.depression
B.description
C.destruction
D.deposition

点击查看答案&解析
微信小程序免费搜题
微信扫一扫,加关注免费搜题

微信扫一扫,加关注免费搜题