string(312) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B0%8F%E7%99%BD%E5%A4%87%E8%80%83%E5%85%AC%E5%8A%A1%E5%91%98%E9%9C%80%E8%A6%81%E5%93%AA%E4%BA%9B%E6%95%99%E6%9D%90%E5%92%8C%E8%B5%84%E6%96%99 => Failed to connect to 101.89.117.144 port 38076: Connection refused"
小白备考公务员需要哪些教材和资料
