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题库 / Prep2007E2-DS-74
If ~$x\neq -y$~, is ~$\frac{x-y}{x+y}> 1$~ ?
(1) x > 0
(2) y < 0
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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（1）+（2），x+y可以是正值，也可以是负值
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