- UID
- 518613
- 在线时间
- 小时
- 注册时间
- 2010-3-13
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
全划线
(A) Although the first pulsar, or rapidly spinning collapsed star, to be sighted was in the summer of
1967 by graduate student Jocelyn Bell, it had not been announced until February, 1968.
(B) Although not announced until February, 1968, in the summer of 1967 graduate student Jocelyn
Bell observed the first pulsar, or rapidly spinning collapsed star, to be sighted.
(C) Although observed by graduate student Jocelyn Bell in the summer of 1967, the discovery of
the first sighted pulsar, or rapidly spinning collapsed star, had not been announced before February,
1968.
(D) The first pulsar, or rapidly spinning collapsed star, to be sighted was observed in the summer of
1967 by graduate student Jocelyn Bell, but the discovery was not announced until February, 1968.
(E) The first sighted pulsar, or rapidly spinning collapsed star, was not announced until February,
1968, while it was observed in the summer of 1967 by graduate student Jocelyn Bell. |
|
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2011-8-8 21:18:39
收藏
收藏
楼主
