题库搜索>数据充分DS-15043
Does q have a distinct value?
（1） (2q−3)2=q2
（2） √I2−q=3
分析A选项
分析B选项
分析C选项
分析D选项
分析E选项
完善解答 
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Hanluer
条件1：两个解 not sure,不充分
条件2：可以得到方程q2-24q+135=0 q=15 or 9; 但是12-q>0, q<12, 所以q=9。 Sure, 充分！
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2022-07-12 19:43:23
374342uvtm
distince value是什么意思？是求出不同的值吗？
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2022-03-10 23:22:44
239694zh
所以这题时答案错了吗？应该选a？
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2021-11-24 16:43:04
smile720
条件1就是能求出2个值，但是问题问的是可不可以求出值，条件1可以的，所以应该也是充分的
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2018-09-19 10:52:08
Jessica7
我也觉得应该是D...GMAT里面只要能回答问题就可以的了
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2018-08-28 14:17:42
268948hjpc回复Jessica7
豁然开朗，差点忘了这条守则。因为2）是唯一值，也能选。是D。
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2022-04-12 07:41:31
gmat800wyt
同问为什么不是D
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2018-05-16 09:28:22
Holmes
只要能回答 q是不是唯一的就行了啊 第一个式子算出来两个q, 说明q不是唯一的, 也是回答了问题为什么不对
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2018-03-14 15:55:42
過閔兒
為什麼不D呢?
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2017-12-09 14:28:39
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数据充分DS
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