单项选择题

A．The United States Copyright Office created it.
B．It does not protect artists’ techniques and procedures.
C．It has not been changed since its creation.
D．It is applied only to copies of the original work.
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单项选择题
A．Geology.B．Music.C．Medical.D．Mathematics.
A．Geology.
B．Music.
C．Medical.
D．Mathematics.
单项选择题
A．He often cuts classes to play basketball.B．He has no chance to play basketball.C．He’s looking for somebody to play the game with.D．He loves playing basketball very much.
A．He often cuts classes to play basketball.
B．He has no chance to play basketball.
C．He’s looking for somebody to play the game with.
D．He loves playing basketball very much.
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