单选题 A,B,and C are points on a line.The distance between A and B is twice the distance between A and C.The distance between C and B is 10.
【正确答案】 D
【答案解析】A、B和C是同一条直线上的点。A与B之间的距离等于A与C之间距离的2倍,C和B之间的距离是10。
解答本题的关键是对以下两种情况的把握:
(1)C点在A和B的中间
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(2)A点在B和C的中间
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