单项选择题

A．It created design problems for architects.
B．It made skyscrapers more expensive to build.
C．It was needed for transporting construction materials.
D．It enabled architects to design their office buildings.
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单项选择题
A．The role of the print media.B．Television’s effect on the movie industry.C．The relationships between different media.D．Radio news as a substitute for newspapers.
A．The role of the print media.
B．Television’s effect on the movie industry.
C．The relationships between different media.
D．Radio news as a substitute for newspapers.
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