400-1816-180
本題由chris提供
If a, b, k, and m are positive integers, is
(1) a is a factor of b.
(2) k ≤ m
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
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答案：
C
很明顯單
聯(lián)立 a是b的因子 說明 b^m當中至少含有a^m次方 而k≤m 所以 b^m一定含有a^k 所以選C
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