单项选择题

What is indicated as a possible future development in television

A．wall-size projection
B．mini-projection
C．color projection
D．true-size projection
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单项选择题
What invention incorporated the principles of light and radio radiation
A．satellite communication
B．X-ray
C．the laser beam
D．continuous wave
单项选择题
According to this lecture, what areas of human sensation have not yet been accounted for in media communication
A．touch, taste, and hearing
B．touch, taste, and smell
C．smell, hearing, and sound
D．touch, taste, and sight
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