string(266) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%88%91%E5%9B%BD%E9%87%8D%E8%A6%81%E7%9A%84%E6%B5%B7%E5%B3%A1%E6%9C%89%E5%93%AA%E4%B8%A4%E4%B8%AA%E6%B5%B7%E5%B3%A1 => Received HTTP code 403 from proxy after CONNECT"
我国重要的海峡有哪两个海峡
