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Agar is so critical that since WWII, scientists have tried to find alternatives in the event of a supply chain breakdown, especially as recent shortages have caused similar alarm. But while other colloid jellies have emerged, agar remains integral to laboratory protocols because no alternatives can yet compete on performance, cost, and ease of use.
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Мощный удар Израиля по Ирану попал на видео09:41，这一点在51吃瓜中也有详细论述
경복궁도 문 닫게 만든 BTS 광화문 공연… 26만명 몰린다