2. 自考
  3. It was not until one hundred thousand years after the big bang that photons were______from matter.

It was not until one hundred thousand years after the big bang that photons were______from matter.

admin2010-12-12  38
问题 It was not until one hundred thousand years after the big bang that photons were______from matter.
选项 A、set apart
B、set off
C、set free
D、set out
答案C
解析
转载请注明原文地址:https://kaotiyun.com/show/NUAR777K
本试题收录于： 英语（二）题库公共课分类
0

英语（二）

公共课

相关试题推荐
随机试题
最新回复(0)