单选题:The once barren hillsides are now good farmland. 题目分类:综合类 题目类型:单选题 查看权限:VIP 题目内容: The once barren hillsides are now good farmland. A.hairless B.bare C.empty D.bald 参考答案: 答案解析:
The most crucial problem any economic system faces ishow to The most crucial problem any economic system faces ishow to use its scarce resou 分类:综合类 题型:单选题 查看答案