知识一定要被证明是有价值的？
一个非常清晰的关于这些问题的陈述对于证明你的论文已经对知识做出了创新性和有价值的贡献是很必要的。
A very clear statement of the question is essential to proving that you have made an original and worthwhile contribution to knowledge.
产品认证是行业公认的凭证，可以证明您曾使用过且了解该产品，它是向客户展示您的知识最好的方法。
Product certifications are industry-recognized credentials that show you have worked with and understand the product, and are great ways to illustrate your knowledge for your clients.
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