- 免费咨询热线
- 400-168-9818
第五段: 后来由于他的 social and political connection, 得到 deliver 10000 musket 的机会. 然后发明了interchangeable parts, 也就是一个人负则一个零部件 ,这些零部件 is interchangeable and can be assembled,提高工作效率.这成为了 heart of mass production, which was further developed by Henry Ford. Whitney 的晚年一直致力子提升 interchangeability.
词汇題 :
1.Garment=xxx of clothing
2.thus=in this way
3.install 二 put in place
4.promoting=developing
Passage three
话题分类:自然科学类
題目: Climate in Triassic and Jurassic
第一段: Late Triassic and early Jurassic的气候特征: warm, aridity,四季分明.
第二段 : 3 broad climate regimes 是基于一些 rocks 去判断.
第三段:还有另外三个 climate indicators 掲示了当时的气候:
a.red beds, rocks with iron oxide,意味着 warm climate;
| 首页 | 上一页 | 当前页：6 [2] [3] [4] [5] [6] [7] [8] [9] [10] ... | 下一页 | 末页 |
