string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%8B%8F%E8%81%94%E4%B8%BA%E4%BD%95%E4%B8%8D%E7%BB%A7%E7%BB%AD%E6%8C%96%E5%9C%B0%E7%90%83 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
苏联为何不继续挖地球
