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题库 / Prep2007E2-DS-22
Is ~$\frac{1}{p}> \frac{r}{r^{2}+2}$~
(1) p = r
(2) r > 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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r如果小于0，移项到右边会改变不等号的方向，所以A不对；
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