第20题: [多项选择]在工程质量控制中,直方图可用于()。 A. 分析产生质量问题的原因 B. 分析判断质量状况 C. 估算生产过程总体的不合格品率 D. 分析生产过程是否稳定 E. 评价过程能力 参考答案:B, C, E 答案解析:通过直方图的观察与分析,1)可了解产品质量波动情况,掌握质量特性分布规律,以便对质量状况进行分析和判断。2)通过对质量数据特征值计算,估算施工生产过程总体的不合格率,评价过程能力等。
选项A是因
第26题: [简答题]It is generally acknowledged that families are now not as close as they used to be. Give possible reasons and your recommendations.
You should write no less than 250 words. Write your article on ANSWER SHEET 2. 参考答案: 答案解析:[范文]
There is much discussion nowadays as to whether or not the relationship between family m