【GMAT考满分数据洞察DS题库】If x is a positive integer, is the value_真题_答案

题目内容

If x is a positive integer, is the value of $y - z$ at most twice the value of $3^{x} - 5^{x}$ ?

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 statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
DEACH statement ALONE is sufficient.
EStatements (1) and (2) TOGETHER are not sufficient.

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正确答案: A

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