题目

【2019 • 湖北省孝感市】At a dark night, a man came to a lonely village. When he walked slowly, a yellow light suddenly    11    at the end of the road. It came from a    12    which was carried by a man. A villager near him said, Here Blind Sun comes. Blind? the man said, That’s too    13   . A blind man has no idea of day and night, can’t    14    the beauty of nature, or even doesn’t know what the light is. Wasn’t he funny to carry a lantern? As the lantern was coming near, the yellow light moved gradually to the man. The man asked,    1直线过直线与的交点，且垂直于直线，则直线的方程是　　　　　　．