string(283) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8C%97%E4%BA%AC%E4%BA%8C%E5%BB%BA%E5%90%84%E7%A7%91%E5%88%86%E6%95%B0%E5%8F%8A%E5%90%88%E6%A0%BC%E6%A0%87%E5%87%86 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
北京二建各科分数及合格标准
