string(207) "get document error:https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=cad%E6%89%93%E4%B8%8D%E5%BC%80%E4%BA%86 => Failed to connect to 101.89.117.144 port 38005: Connection refused" cad打不开了

cad打不开了网!

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cad打不开了