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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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N大于-1，因为是整数，所以至少要从0开始，结合条件2，乘积大于0，所以n和p都大于0
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