题库搜索>数据充分DS-15054
Q is a set of integers and 11 is in Q. Let Q denote any element in the Q set. Is every positive multiple of 11 in Q?
（1） Q+ 11 is in Q.
（2） Q- 11 is in Q.
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any element = Q set 中任何一项都设为 Q
条件1：
在题干给出的信息基础上，Q + 11 在 Q set 里，由于 Q=Q set 中的任何一个数值，所以，表示任何 Q + 11 都在 Q set 里，则 Q 本身就是 11 的倍数，一直往上加，没有限制的话，所有 11 的倍数都会在 Q set 里，充分。
条件2：
因为问题问的是 is every positive multiple of 11 in Q，正数的倍数，而 Q - 11 可能出现负数，所以，不符合题干要求的结果，不充分。
科目：
数据充分DS
来源：
Manhattan
题目信息1m57s
平均耗时
55.8%
平均正确率
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