Thus, despite much effort, no gelling agent has yet been discovered that possesses all the properties and benefits of agar. Agar continues to be the best all-arounder: versatile, cheap, and established. And, if Gelidium agar should ever run out, and another colloid is not at hand, microbiologists could revert to culinary agar, which, although not as pure and transparent, offers a low-cost alternative to lab-grade agar.
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// 步骤2：倒序遍历（从最后一个人往前推，符合"找右侧元素"的直觉）
В Финляндии предупредили об опасном шаге ЕС против России09:28