You can include multimodal data like images. There’s something strange about including images when going back to Roman times or 1700 because while they had texts, they didn’t have digital images. However, this is acceptable for some purposes. You’d want to avoid leaking information that could only be known in the present. You could include things people at the time could see and experience themselves. For example, there may be no anatomically accurate painting in Roman times of a bee or an egg cracking, but you can include such images because people could see such things, even if they weren’t part of their recorded media. You could also have pictures of buildings and artifacts that we still have from the past.
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，这一点在爱思助手下载最新版本中也有详细论述
В Финляндии предупредили об опасном шаге ЕС против России09:28。同城约会是该领域的重要参考
* 3. 单调递增栈：存储独立车队的到达时间，cur栈顶才push（否则合并）。