string(230) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=cmtds%E5%92%8Clte%E7%BD%91%E9%80%9F%E5%93%AA%E4%B8%AA%E5%BF%AB => Failed to connect to 101.89.166.210 port 38089: Connection refused"
cmtds和lte网速哪个快
