5个号码复式三中三中4个有多少组

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.

• 2.7孽缘HD
  孽缘
  孽缘
• 7.8床垫里的百万欧元更新至39期
  床垫里的百万欧元
  床垫里的百万欧元
• 9.8白头神探3（普通话）更新至39期
  白头神探3（普通话）
  白头神探3（普通话）
• 7.2掘地三尺4K
  掘地三尺
  掘地三尺
• 6.8棒子老虎鸡4K
  棒子老虎鸡
  棒子老虎鸡
• 2.7老保管4K
  老保管
  老保管
• 3.5巨石强森和Siri事事在握更新至39集
  巨石强森和Siri事事在握
  巨石强森和Siri事事在握
• 3.4蝴蝶魔咒4K
  蝴蝶魔咒
  蝴蝶魔咒
• 8.2穿长靴的猫更新至39期
  穿长靴的猫
  穿长靴的猫
• 1.1不朽2010更新至39期
  不朽2010
  不朽2010