单项选择题

A．Because of the size and composition of their audience.
B．Because of their diverse and lively programs.
C．Because advertising is the most important source of income for them.
D．Because TV and radio stations are run by advertising companies.
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单项选择题
A．The classification of all prose.B．Different types of writing.C．Paragraph writing techniques.D．Exposition and its paragraph writing.
A．The classification of all prose.
B．Different types of writing.
C．Paragraph writing techniques.
D．Exposition and its paragraph writing.
单项选择题
A．In the 15th century.B．In the 16th century.C．In the 17th century.D．In the 18th century.
A．In the 15th century.
B．In the 16th century.
C．In the 17th century.
D．In the 18th century.
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