A patent is a （） for an invention granted by a government to the inventor.
A.creative paper
B.research article
C.property right
D.scientific book
正确答案：property right
A patent is a （） for an invention granted by a government to the inventor.
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What are the functions of multimedia?
Media literacy is a （） of competencies that enable people to access, analyze, evaluate, and create messages in a wide variety of
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