AMC往年的题how many positive cubes divide 可我不明白是怎么来的……

AMC往年的题how many positive cubes divide 可我不明白是怎么来的…… 英语翻译1、how many cubes divide x5!x7!(divide 是“除”还是“除以”或是“整除”,x How many positive even perfect cubes are less than 2008? 有一部我不明白怎么得来的. How many perfect cubes are between 100 and 900? How many blue cubes are in the bag? divide into的同义词是? 都说全球气候变暖.我怎么感觉冬天提前.夏天来迟.往年有这么早下雪的么? how many seasons-------one year-------(divide)into? 线性代数的一道题,不明白r(a)+r(b)小于n是怎么得出来的, divide…sth by sth 和divide…into sth的区别 这是怎么算的啊…一点不明白