单项选择题

A．The salinity of the ocean.
B．Pollutants found at sea.
C．The composition of coral reefs.
D．The weather patterns of coastal areas.
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单项选择题
A．The apartment is too far from the campus.B．The apartment needs a lot of repair work.C．She’s having trouble with the owner of the apartment.D．Her roommate won’t share expenses.
A．The apartment is too far from the campus.
B．The apartment needs a lot of repair work.
C．She’s having trouble with the owner of the apartment.
D．Her roommate won’t share expenses.
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