string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BE%8E%E5%9B%BD%E5%85%AC%E5%B8%83%E4%BA%86%E5%9F%BA%E5%9B%A0%E5%9B%BE%E8%B0%B1%E5%90%97 => Failed to connect to 101.89.143.195 port 38205: Connection refused"
美国公布了基因图谱吗
