Birds don’t get lost on their migratory flights, and the reasons ______. The bird mentioned in the passage ______.

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问题 Birds don’t get lost on their migratory flights, and the reasons ______.
The bird mentioned in the passage ______.

选项 A、has stayed in cage for too long to fly under the real sky
B、does not respond to the change of the stars in the experiment
C、has spent its lifetime in a cage
D、both A and B

答案C

解析 本题询问有关文中提及的鸣鸟的一些情况。根据原文(38)处可知,这种鸣鸟一生都是在鸟笼中度过的,从未在真正的天空中飞过,故选C。
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