If m and n are integers, is m odd?
(1) n + m is odd.
(2) n + m = n2 + 5
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.
选项A肯定不满足,选项B带入“奇/偶”四种情况,即可得出,M一定是奇数
登录 或 注册 后可以参加讨论