单项选择题

"A dead patent" is one that ______.

A．no longer wins money
B．has expired
C．is plagiarized
D．is violated
<上一题 目录 下一题>
热门 试题

单项选择题
It can be inferred from the passage that ______.
A．all the ideas "new" to us are actually old
B．some "new" ideas can make money without having to be commercialized
C．all "new" ideas first appeared in the form of a patent
D．some "new" ideas may not bring economic reward to their originators
单项选择题
The new era of television is brought about by ______.
A．modern technologies
B．computer technologies
C．television technologies
D．the combination of TV and computer technologies
相关试题