问题描述：
where do lions come from?where do tigers come from?where do pandas come from?
where do lions come from?
where do tigers come from?
where do pandas come from?
where do monkeys come from?
where do elephants come from?
where do lions come from?
where do tigers come from?
where do pandas come from?
where do monkeys come from?
where do elephants come from?
问题解答：
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