zhutom 发表于 2016-8-13 15:35
data sufficienc问的是能不能求出确定的解 不是问那个解
问解的题就是problem solving了 ...
岚弈 发表于 2016-8-13 15:47
我找到了,有材料里讲了这个: Remember that “No” can be sufficient: If you have enough information ...
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