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2)DS(my weakness, 让ME颇头疼)
Have a straight line, Ask whether point x and point y on the same side of 原点0 ?
A)the distance from x to point 0 is equal to the distance from y to point 1.
B)The sum of the distance from x to point 0 and the distance from y to point 1 is less than 1.
这道题可以在纸上简单的画画!!应该是E
你的答案呢!! |
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