string(276) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%80%83%E7%A0%94%E5%87%86%E8%80%83%E8%AF%81%E6%89%93%E5%8D%B0%E4%BB%8E%E5%87%A0%E7%82%B9%E5%BC%80%E5%A7%8B => Failed to connect to 101.89.117.144 port 38076: Connection refused"
考研准考证打印从几点开始
