string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%9B%91%E7%90%86%E4%BA%BA%E5%91%98%E5%BA%94%E7%9F%A5%E5%BA%94%E4%BC%9A%E6%89%8B%E5%86%8C => Failed to connect to 101.89.166.210 port 38089: Connection refused"
监理人员应知应会手册
