string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E9%80%A0%E8%AE%A1%E9%87%8F%E9%A2%98%E5%9E%8B%E5%8F%8A%E5%88%86%E6%95%B0 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
一造计量题型及分数
