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
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
单项选择题
The following advantages of smokeless tobacco are listed EXCEPT that _________ .
A．it is an effective substitute for ordinary smoking
B．it has no side effects
C．it avoids second-hand smoke
D．it can prevent a fire from bursting out
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