GMAT 考满分题库

If $$x\neq y$$, is x+y=xy?

(1) (1-x)(1-y)=1

(2) $${x}^{2}-{y}^{2}={x}^{2}{y}-{x}{y}^{2}$$
  • AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
  • BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
  • CBOTH statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
  • DEACH statement ALONE is sufficient.
  • EStatements (1) and (2) TOGETHER are NOT sufficient.
显示答案
正确答案: D

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