2. 外语
  3. What do the astronomers in Holland believe? What phenomenon cannot the astronomers find a satisfactory explanation for?

What do the astronomers in Holland believe? What phenomenon cannot the astronomers find a satisfactory explanation for?

admin2009-06-24  64
问题 What do the astronomers in Holland believe?
What phenomenon cannot the astronomers find a satisfactory explanation for?
选项 A、The supernova destroyed its hydrogen layers at an earlier stage.
B、The supernova debris contained much hydrogen.
C、The supernova resulted in a quark star.
D、The explosion of the supernova has produced very much antimatter.
答案B
解析
转载请注明原文地址:https://kaotiyun.com/show/a5Hd777K
本试题收录于： 公共英语五级笔试题库公共英语（PETS）分类
0

公共英语五级笔试

公共英语（PETS）

相关试题推荐
随机试题
最新回复(0)