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题库 / Prep2007E1-DS-95
Is ~$\frac{1}{a-b}$~ < b - a ?
(1) a < b.
(2) 1 < ~$\left | a-b \right |$~.
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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判断谁大谁小，相除和1比或者相减和0比。相除注意除数是否是负数，相减注意不要彻底调换不等号两边。
左减右：（1/a-b）-b+a
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