单项选择题

A．Protection of intellectual property.
B．To say "no" to piracy.
C．Luxury items and their prices.
D．People and pirated products.
<上一题 目录 下一题>
热门 试题

单项选择题
The passage gives a general description of the benefits and potential problems of a hydrogen economy.
A．Y
B．N
C．NG
相关试题