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你算错了吧，如果算21是循环的话，就应该等于1/10+21/990=99/990+21/990=120/990=4/33In Reply To:0.1212121...到底是12循环，还是21循环，12循环算出来是4/33,21循环算出是7/33 Posted by:smallrain at 2005-07-27 10:01:13 Followed by: Post your reply here: |
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