单项选择题

A．They found ways to speed up the reproduction of bald eagles.
B．They developed new types of feed for baby bald eagles.
C．They explored new ways to hatch baby bald eagles.
D．They brought in bald eagles from Canada.
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单项选择题
A．How to use a camera.B．How to use a washer.C．How to use a keyboard.D．How to use a tape recorder.
A．How to use a camera.
B．How to use a washer.
C．How to use a keyboard.
D．How to use a tape recorder.
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A．To look for a different lifestyle.B．To enjoy themselves.C．For adventure.D．For education.
A．To look for a different lifestyle.
B．To enjoy themselves.
C．For adventure.
D．For education.
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