最新提问
我的动态
登录后查看动态
题目内容双击单词支持查询和收藏哦～
In medieval Europe, watermills were more (i)_____ than windmills. It is true that windmills could be built virtually anywhere, whereas watermills (ii)_____. However, watermills' greater capacity and reliability provided a better (iii)_____ the money required to build the mill.
- Blank(i)
- problematic
- profitable
- versatile
- Blank(ii)
- were suitable only for certain locations
- inspired a variety of new technologies
- required a good deal of upkeep
- Blank(iii)
- source of
- adjunct to
- return on
profitable , were suitable only for certain locations , return on 显示答案
以上解析由 考满分老师提供。
