请在 下方输入 要搜索的题目:

_______ tends to span very long periods of time, whereas ______ events can be observed over a few years.

_______ tends to span very long periods of time, whereas ______ events can be observed over a few years.

发布时间:2025-06-27 04:56:35
推荐参考答案 ( 由 快搜搜题库 官方老师解答 )
联系客服
答案:Secular trends, cyclical events
专业技术学习
专业技术学习
搜搜题库系统