单项选择题

In the last 3rd paragraph, "The qualifying tests for patents are straightforward--that an idea be useful, novel and not obvious." Here, "obvious" means______.

A．easily perceived or understood
B．quite apparent
C．standing in the way or in front
D．transparent
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单项选择题
What's wrong with Europe's patent system
A．Lack of a unified patent system.
B．Smaller firms and individual inventors tend to be neglected.
C．Patent protection is not secure enough.
D．Patent application process is too complex.
单项选择题
Which of the following is the main problem of the current patent system
A．Patent offices have been too lax in granting patents.
B．Most patent offices are swamped by applications.
C．It is probably inhibiting, rather than encouraging, commercial innovation.
D．The quilt of national patent offices and languages
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