400-600-1123
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答案：
E
6个国家
假如一个国家派了41 ，如果41是最大的，那么 A国家， 第二大的，如果要小于10 ，A国家可以是9个人，剩余4个国家可以是8,7,6,5 ；
9+8+7+6+5=35 >75-41=34 剩余A可以少于 ；推不出A≥10 insufficient
A派了少于12个人， A可以派 11,10,9,8,7，6,5 这里既有大于10，又有小于10 insufficient
1+2： A既可以是9 小于10的情况，也可以 是大于10的情况 10,11 insufficient
选E
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