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It has been ______ years since Galileo made the first telescope. Through telescopes men have discovered that______.
It has been ______ years since Galileo made the first telescope. Through telescopes men have discovered that______.
admin
2013-06-11
24
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
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大学英语三级B级题库大学英语三级分类
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大学英语三级
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