问题

选项

答案

解析步骤一：单击C2单元格，再执行“数据”面板下的从高到低排序Z→A；步骤二：从高到低选100*27% =27人，作为高分组，求出他们的通过率=SUM(C2：C27)/(27 * I100) =0.9181；步骤三：从低到高选27人，作为低分组，求出他们的通过率= SUM(C75: C101)/(27 *100)= 10.32481481；步骤四：区分度 D =0.9181-0.32481481=0.594。分析：区分度为0.594，试卷评价的结果非常好。

错误信息

消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.

文件: /twcms/kongphp/cache/cache_redis.class.php

位置: 第 85 行

<?php echo 'KongPHP, Road to Jane.'; ?>

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