cumulative percentage短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 累积率 Look for a break point in the cumulative percentage line. This point occurs where the slope of the line begins to flatten out. The factors under the steepest part of the curve are the most important. 在加全平均曲线上发现转折的地方，该点应该是曲线的斜坡转为平坦的地方。曲线最陡峭的部分相关的因素通常是最重要的。 mypm