单项选择题

What is one problem that the speaker emphasizes

A．Rising sea levels
B．Deceased fish
C．Unproductive farming
D．Unhealthy drinking water
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单项选择题
What is the main purpose of this broadcast
A．To advertise a special feature
B．To discuss tomorrow’s schedule
C．To wrap up a show
D．To encourage listener feedback
单项选择题
What is mentioned about the instructors
A．They are experienced professionals.
B．They receive special communications training.
C．They have graduated from top colleges.
D．They act as role models for students.
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