string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%80%83%E7%A0%94%E4%B8%80%E4%B8%8B%E5%8F%AF%E4%BB%A5%E6%8A%A5%E5%87%A0%E4%B8%AA%E5%AD%A6%E6%A0%A1 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
考研一下可以报几个学校
