（12分）已知a, b都是正数，并且a ¹ b，求证：a5 + b5 > a2b3 + a3b2
阅读理解 Mark Twain, the famous American writer, was traveling in France. Once he was going by train to Dijon. That afternoon he was very tired and wanted to sleep, so he asked the conductor to
新疆维吾尔自治区是我国五大自治区之一，我国在这一地区实行区域自治，设立自治机关。其自治机关是自治区的 A．党委和人民政府
E BBC News (May 11, 2008) —Edinburgh Zoo plans to bring a pair of giant pandas from China to Scotland. Representatives from Edinburgh Zoo have recently returned from China. They signed a letter of
真正的哲学都是自己时代的精神上的精华。由毛泽东思想、邓小平理论、“三个代表”重要思想、科学发展观组成的中国特色社会主义理论体系
阅读下面的宋词，完成后面的1至3题。 西江月黄陵庙（又题阻风三峰下） 张孝祥① 满载一船秋色，平铺十里湖光。波神②留我看斜阳，唤起鳞鳞细浪。
的图象是 （ ）
