可以帮我解释下吗？明天考试。。。

noob1231

1.•Youmay negotiate outright ownership of copyrighted material. If the owner does notwish to sell ownership rights, however, you may still be able to license therights to use that material.

•Keepin mind that different rights for the same copyrighted work ( for example,rights for public performance, broadcast use, or publication) may be assignedto different parties.

2.DerivativeWorks年

3.Issuein Multimedia: Censorship 以上是1,2,3是什么意识？？？帮帮忙。。。明天考试，看了很久还是看不明。。