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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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男人们喝了14瓶啤酒，拍拍身上的土各自回家了。老爸心有亏欠，这些人原本有在山里放羊的，有在家拉牛粪的，还有在亲戚家打麻将的，一听要帮忙，都放下手头的事赶过来。“正月里人们都不咋干活，整天喝酒吃肉逛亲戚，这下让他们把力气出了。”
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