string(269) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%9B%91%E7%90%86%E6%A8%A1%E6%8B%9F%E8%80%83%E8%AF%95%E5%9F%BA%E6%9C%AC%E5%A4%9A%E5%87%BA20%E5%88%86 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
监理模拟考试基本多出20分
