工作年龄的人口数量增加将使劳动供给曲线向右移动。 ()
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A．damageB．harmC．destroyD．mutilate
A. damage
B. harm
C. destroy
D. mutilate
Copyrights and related rights protect ______.
A. the rights of a novelist only when he is alive
B. the rights of a novelist for no longer than 50 years after his death
C. the rights of a music performer for his creative work
D. the rights of radio program producers rather than those of radio stations
Which of the following is not TRUE？
A. Inventions are protected by patents for typically 20 years.
B. The protection of industrial property cannot last indefinitely.
C. The intellectual property rights under protection are also subject to limitations and exceptions.
D. There should be a balance between the legitimate interests of IPR holders and those of users.
正向供给冲击提高了资本的边际产出。 ()
A. 正确
B. 错误
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