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在线计划网页版
- 主演： 英格瓦·埃盖特·西古德松 周梦 米奇·哈尔德 郑伟
- 状态：HD
- 导演：西蒙•费霍文
- 类型：综艺
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简介：It is known that a straight line passes through a point, and there is only one straight line that is parallel to the known straight line. Prove: is there only one straight line that passes through a point and is parallel? Su Can stared closely at this math problem, holding a pen in his hand and writing on the scratch paper.