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题库 / GMATAdvanced-DS-42
In the standard (x, y) coordinate plane, what is the slope of the line containing the distinct points P and Q?
(1)Both P and Q lie on the graph of |x|+|y| =1
(2)Both P and Q lie on the graph of |x+y|=1
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
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【记笔记，感谢网友】不用了解图形，知道有4个点可以同时满足（1）（2）就行
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