197.
The integers m and p are such that 2 < m < p and m is not a factor of p. If r is the remainder when p is divided by m, is r > 1 ?
(1) The greatest common factor of m and p is 2.
(2) The least common multiple of m and p is 30.
答案是A, 我选的D.
我觉得(2) 也可以得出来阿
例如: m=6 p=15,商2余3,r=3, 那么 r>1成立
m=10 p=15,商1与5,r=5, 那么r>1成立
大家帮我看看吧~
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