string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%A0%94%E7%A9%B6%E7%94%9F%E8%80%83%E4%B8%89%E6%94%AF%E4%B8%80%E6%89%B6%E5%80%BC%E5%BE%97%E5%90%97 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
研究生考三支一扶值得吗
