单项选择题

A．For scientific study.
B．For field guides.
C．For entertainment.
D．For some film background sounds.
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单项选择题
A．The man’’s professor.B．The man’’s roommate.C．A neighbor.D．The man’’s brother.
A．The man’’s professor.
B．The man’’s roommate.
C．A neighbor.
D．The man’’s brother.
单项选择题
A．All the passengers were killed.B．The plane crashed in the night.C．No more survivors have been found.D．It’’s too late to search for survivors.
A．All the passengers were killed.
B．The plane crashed in the night.
C．No more survivors have been found.
D．It’’s too late to search for survivors.
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