string(321) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8C%97%E4%BA%AC%E5%8D%87%E5%9B%BD%E6%97%97%E4%BB%AA%E5%BC%8F%E6%AF%8F%E5%A4%A9%E6%97%B6%E9%97%B4%E9%83%BD%E6%98%AF%E5%9B%BA%E5%AE%9A%E7%9A%84%E5%90%97 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
北京升国旗仪式每天时间都是固定的吗
