string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E7%BA%A7%E6%9C%BA%E7%94%B5%E5%BB%BA%E9%80%A0%E5%B8%88%E5%8F%8A%E6%A0%BC%E5%88%86%E6%95%B0 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
一级机电建造师及格分数
