下列关于知识产权的理解，不正确的是（）。
- A.知识产权的客体不是有形物，而是知识、信息等抽象物
- B.知识产权具有地域性，即在本国获得承认和保护的知识产权不具有域外效力
- C.对于专利权的域外效力，可以依赖国际公约或者双边协定取得
- D.知识产权具有一定的有效期限，无法永远存续
正确答案及解析
正确答案
解析
知识产权的地域性是指按照一国法律获得承认和保护的知识产权，只能在该国发生法律效力，而不具有域外效力。知识产权域外效力的取得，对著作权而言，依赖于国际公约或者双边协定即可，而对于专利权、商标权，则必须经过他国行政主管机关的确认方可产生法律效力。
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