string(294) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%8B%97%E7%8B%97%E4%BD%93%E5%86%85%E6%9C%89%E5%AF%84%E7%94%9F%E8%99%AB%E7%9A%84%E8%A1%A8%E7%8E%B0%E6%9C%89%E5%93%AA%E4%BA%9B => Failed to connect to 101.89.117.144 port 38005: Connection refused"
狗狗体内有寄生虫的表现有哪些
