string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E5%BB%BA%E8%80%83%E8%AF%95%E5%8D%B7%E5%AD%90%E4%B8%8A%E5%8F%AF%E4%BB%A5%E4%B9%A6%E5%86%99%E5%90%97 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
一建考试卷子上可以书写吗
