单项选择题

Section B

Questions 26 to 28 are based on the passage you have just heard.

A．The government.
B．Companies that advertise their products or services.
C．Huge groups of audiences.
D．A smaller group of people.

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单项选择题

单项选择题

Section B Questions 26 to 28 are based on the passage you have just heard. 您的浏览器不支持 audio 元素。