设抛物线y2=2px(p＞0)的焦点为F,经过点F的直线交抛物线于A、B两点,点C在抛物线的准线上,且BC∥x轴.证明直线AC经过原点O.
8．加点成语使用正确的是： A．战势已至此，我们别无选择，只有背城借一，拼一拼。 B．香港黄金期货悖入悖出，2014年6月合约成交量为零，无最后成
25. Welcome to the Historical Museum, everyone! This stone knife _______ in South Africa and experts can’t be exactly sure about its use. A. had been found B. was found C. has been fou
One day when Jack was walking in the park, he saw a woman, who lived a few miles away, sitting on a bench with a dog beside her. The dog was looking up at the woman. Jack walked up to t
（·浙江省杭州高中高三上第一次月考） 8. ______ its size with that of the whole earth, we find the highest mountain does not seem high at all. A. When compared B. Compared to
如图所示，闭合开关S，调节滑动变阻器滑片使电压表示数从6V升高到10V时，电流表示数变化了0.1A，则该定值电阻的电功率变化了（ ） A. 0.4W
某同学利用手中的等高线地形图进行乡土地理考察，他乘车到某一村落，下车后举目所见尽是水田分布，沟渠纵横。读右图，回答3～4题。 3．图中由甲
21．仿照下面的句式，续写两个恰当的比喻句，使之构成一组排比句。(5分) 如果你是一滴水，你是否滋润了一寸土地？________ ________________？__
