Data Sufficiency

试题详情

题目:

If x and y are integers and x > 0, is y > 0?
(1)     7x – 2y > 0
(2)     -y < x

选项:

答案:

E

提问:

为什么联立不行呢? If x and y are integers and x>0, is y>0? (1)7x-2y>0 (2)-y
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