论文部分内容阅读
J文/卓凡 一、选择题 ·双曲线告一专- 1两准线间的距离是 O一; (一八乃 A .1(〕 B .5 (’ I,.号 2.已知双曲线, 一子一1· 过点尸(1.1)的直线L与双曲线只有一个公共 则1,的条数最多有 八.1 B.2 C .3 l).牛 :弓.如图l 水面升高l 抛物线形拱桥的顶点距水面Zn飞时.测得拱桥内水面
J Wen / Zhuo Fanyi, the multiple-choice hyperbolic report a - 1 distance between the two guideline is O; (18 is A .1 () B .5 (’I,. No. 2 known double Curves, one son and one one. · The straight line L and hyperbola of the dead body (1.1) are only one public one. The maximum number of rows is eight.1 B.2 C.3 l). Cattle: bow. Figure l Water surface Raise the distance between the vertex of the parabolic arch bridge and the water surface Zn. Measure the water level inside the arch bridge.