string(292) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E5%BB%BA%E7%9C%8B%E7%B2%BE%E8%AE%B2%E7%8F%AD%E8%BF%98%E6%98%AF%E5%86%B2%E5%88%BA%E7%8F%AD%E6%AF%94%E8%BE%83%E5%A5%BD => Failed to connect to 14.18.117.71 port 38069: Connection refused"
一建看精讲班还是冲刺班比较好
