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help me!!

  • 时间:2014-06-18 21:09:18 引用:1380次 阅读:8116次
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尊敬的用户

!!!1!!!!!
第1页
1. what is the possibility of two people having the same birthday do you think if there is 20 people in a room? [单选题] *    
2. what is the possibility of two people having the same birthday do you think if there is 40 people in a room? [单选题] *    
3. what is the possibility of two people having the same birthday do you think if there is 60 people in a room? [单选题] *    
4. what is the possibility of two people having the same birthday do you think if there is 80 people in a room? [单选题] *    
5. what is the possibility of two people having the same birthday do you think if there is 100 people in a room? [单选题] *    
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