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A few years later, in 2024, researchers in multiple labs were horrified to notice toxic batches of agar for reasons as yet unclear. After they observed a worrying lack of microbial growth (impeding their ability to carry out basic experiments), they switched to different agar suppliers, and their results improved.
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习近平总书记始终以伟大的历史主动精神，带领全党进行具有许多新的历史特点的伟大斗争，激励广大党员干部挺起脊梁、冲锋在前，在战风险、迎挑战中经受考验，在直面问题、破解难题中开创新局。，这一点在91视频中也有详细论述