单项选择题

A．Training for a professional athlete.
B．His ways of physical training.
C．How to do cross-country running.
D．How to do mountain climbing.
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单项选择题
A．It focuses automatically.B．It has a lot of specialized lenses.C．It is easy to load.D．It advances the film automatically.
A．It focuses automatically.
B．It has a lot of specialized lenses.
C．It is easy to load.
D．It advances the film automatically.
单项选择题
A．Editor.B．Journalist.C．Teacher.D．Student.
A．Editor.
B．Journalist.
C．Teacher.
D．Student.
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