string(296) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2021%E5%B9%B4%E4%BA%8C%E7%BA%A7%E5%BB%BA%E9%80%A0%E5%B8%88%E6%9C%BA%E7%94%B5%E8%80%83%E8%AF%95%E7%9C%9F%E9%A2%98%E7%AD%94%E6%A1%88 => Failed to connect to 218.78.59.96 port 38043: Connection refused"
2021年二级建造师机电考试真题答案
