It has been ______ years since Galileo made the first telescope. Through telescopes men have discovered that______.

admin2013-06-11  32

问题 It has been ______ years since Galileo made the first telescope.
Through telescopes men have discovered that______.

选项 A、many more new groups of millions of stars remain unknown to us
B、stars are not in a single group
C、bigger and more powerful telescopes have been built recently
D、some stars are not single but in millions of groups

答案D

解析
转载请注明原文地址:https://kaotiyun.com/show/LarK777K
0

随机试题
最新回复(0)