On the number line, the distance between point A and point C is 5 and the distance between point B and point C is 20. Does point C lie between point A and point B?
(1)The distance between point A and point B is 25.
(2)Point A lies to the left of point B.
答案选A,我选D,忧伤了~~~ 作者: miweekend 时间: 2012-8-19 09:01
For the second statement, 如果C点在number line的最左端的（C点在A
点左边）话， C点就可以能不在AB之间。如果C点在A点右边的话，C点就在AB
之间了~~
所以是not sufficient吧~~~ 选A 我觉得是对的。。。
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