1.第二季以后，周清包子铺都已经在网上卖包子了，所有经营资质都齐全了吗？需要有哪些证件？
证件：
卫生许可证
工商营业执照
税务登记证
食品流通证
2.ecommerce laws
The form of intellectual property protection easiest for many entrepreneurs and startups to understand is copyright protection, which applies to many writings, images, and videos. In an age in which many startups commercially exploit digital content, whether as a core product or ancillary to the development of an online community, startups and their principals should be well-versed in at least the basics of copyright protection.
重点词汇：
Intellectual property protection 知识产权保护
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