单项选择题

A．The original work of art increases in value.
B．An artist has greater legal protection.
C．Artists can sell their work abroad.
D．Artists are allowed to make changes in their own works.
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填空题
In the author’s opinion, technical progress such as inventions of gunpowder and the mariner’s compass during the civilized process cannot be ______ to the power of speech, writing and agriculture.
填空题
cannot—can
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