單選題
Legal protection is provided for the __66__of intellectual property. The three common types of legal protection are patents, copyrights, and trademarks.
Patents provide exclusive use of inventions. If the US patent office __67__ a patent, it is confirming that the intellectual property is __68__. The patent prevents others from making, using, or selling the invention without the owner’s__69__ for a period of 20 years.
66. [A] users [B] owners
[C] masters [D] executives
67. [A] affords [B] affiliates
[C] funds [D] grants
68. [A] solemn [B] sober
[C] unique [D] universal
69. [A] perspective [B] permission
[C] conformity [D] consensus |
