if b is the product of three consecutive positive integers c,c+1,c+2,is b a multiple of 24?
(1)b is a multiple of 3
(2)c is odd
答案选A我选E
我直接拿c=1就推出来了.E
不懂是不是有什么问题..谢谢大家
没有噢..就这些条件.全部原版打上来的..
再多两个选E的就是E了
哈哈
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