string(258) "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%E5%AE%89%E8%A3%85%E7%9C%9F%E9%A2%98%E7%AD%94%E6%A1%88 => Failed to connect to 101.89.117.144 port 38076: Connection refused"
一造计量安装真题答案
