string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E5%BB%BA%E5%BE%80%E5%B9%B4%E8%80%83%E8%AF%95%E7%9C%9F%E9%A2%98%E7%AD%94%E6%A1%88 => Failed to connect to 101.89.117.144 port 38208: Connection refused"
二建往年考试真题答案
