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题库 / Prep2007E2-DS-8
If n and p are integers, is p > 0 ?
(1) n + 1 > 0
(2) np > 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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If n and p are integers, is p > 0?
(1) n + 1 > 0
(2) np > 0
(1) n+1>0 且 n 是整數，則 n = 0,1,2,3,4,......... ->not sufficient
(2) np>0, n&p>0 or n&p not sufficient
(1)(2) n&p>0 -> sufficient
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