string(270) "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%E5%9C%9F%E5%BB%BA%E8%AE%A1%E9%87%8F%E7%AD%94%E6%A1%882022%E5%AE%8C%E6%95%B4%E7%89%88 => Failed to connect to 101.91.112.32 port 38221: Connection refused"
一造土建计量答案2022完整版
