在人工智能伦理研究中，学者发现既有理论框架无法解释新型人机关系，这预示着：

在幽默表达中，以下哪种方式不属于增加笑点的方法？

Which tense is typically used to describe an action that was happening at a specific time in the past?

Identify the subject in this sentence: 'It is essential for researchers to document their methods clearly'.

在顺序存储结构中，数组的元素是如何存储的？