这意味着，行业劳动力正从提供标准化讲解的“流水线工人”，向提供个性化服务的“旅行策划师”升级，这是产业价值提升最坚实的微观基础。
So it is that agar continues to be the jelly of choice in laboratories around the world. As Humm wrote in 1947: “Today, the most important product obtained from seaweeds is agar, a widely-used commodity but one that is not well known to the general public.” Almost 80 years later, it might be better known, but its importance hasn’t dwindled.
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