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For how many positive integers m ≤ 100 is (m -5)(m -45) positive?A、45B、50C、58
For how many positive integers m ≤ 100 is (m -5)(m -45) positive?A、45B、50C、58
游客
2024-01-12
14
管理
问题
For how many positive integers m ≤ 100 is (m -5)(m -45) positive?
选项
A、45
B、50
C、58
D、59
E、60
答案
D
解析
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