As an AI language expert, my purpose is to assist you with accurate and helpful information. When you ask if someone is "pulling your leg," you're inquiring whether they are joking or not telling the truth. This phrase is often used to express skepticism or to seek confirmation of someone's sincerity.

English Answer:
No, I'm not pulling your leg. As an AI, I'm programmed to provide assistance and answer your questions to the best of my ability without engaging in deception or humor.

中文回答：
不，我不是在开玩笑。作为一个人工智能，我的程序设计是为了提供帮助并尽我所能回答你的问题，不涉及欺骗或幽默。

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For those who aren't familiar with the phrase, when someone says, ��You must be pulling my leg!�� they usually mean, ��You must be joking/teasing/making something up.�� Extremely popular in the 20th century, the origin of this phrase is still something of an enigma to etymologists.read more >>