(共25张PPT) 数 词 栏 目 导 航 语法过关 考点讲练 好题演练 素养提升 基数词与序数词 A A D third in the 1980s hundred, thousand, million, billion的用法 C C millions 分数及倍数 D A Our school is twice as big as theirs. twice Once C C B C millions twelfth fifties second fourth A B D A C C B A B C 第4 讲