单项选择题

A．Pollution of coastal areas.
B．Rise in sea levels.
C．Exhaustion of sea resources.
D．Earthquakes and volcanoes.
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单项选择题
A．He read the newspaper.B．One of his students told him.C．He attended a cabinet meeting.D．He listened to the radio report.
A．He read the newspaper.
B．One of his students told him.
C．He attended a cabinet meeting.
D．He listened to the radio report.
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