string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%94%B2%E6%96%B9%E5%B7%A5%E7%A8%8B%E6%8A%80%E6%9C%AF%E9%83%A8%E7%9A%84%E8%81%8C%E8%B4%A3 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
甲方工程技术部的职责
