- UID
- 595684
- 在线时间
- 小时
- 注册时间
- 2011-1-10
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
14.Sunspots, vortices of gas associated with strong electromagnetic activity, are visible as dark spots on the surface of the Sun but have never been sighted on the sun's poles or equator. A are visible as dark spots on the surface of the Sun but have never been sighted on C appear on the surface of the Sun as dark spots although never sighted at 正确选项选A,OG解释说visible和sighted对应,C选项错在although后面应该跟句子,但是C中是短语sighted.
我觉得C也没错啊,状语从句不是有一种省略式吗,就是从句主语和主句主语一致,从句完整是although they have never been sighted at,这里省略了they have never been( sb be)。 牛人看看,这种想法不对吗?
|
|