Warning: file_put_contents(): Only 0 of 6298 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/totle.com.cn/index.php on line 55 simple random sampling with replacement例句_simple random sampling with replacement英汉例句_simple random sampling with replacement双解例句_乐豆毛深蓝词典
Firstly, we give an effective sampling design: a simple random case sample with replacement is drawn out of all cases; 首先，我们设计了一个有效的抽样方案：采取简单随机抽样从病例组抽取样本；