string(302) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E5%BB%BA%E6%A8%A1%E6%8B%9F%E9%A2%98%E5%81%9A%E5%88%B0%E5%A4%9A%E5%B0%91%E5%88%86%E8%80%83%E8%AF%95%E6%89%8D%E4%BC%9A%E8%BF%87 => Failed to connect to 101.91.112.32 port 38195: Connection refused"
二建模拟题做到多少分考试才会过
