* 时间O(n) 空间O(n)（理论最优，无冗余计算/存储）
Without agar, countries could not produce vaccines or the “miracle drug” penicillin, especially critical in wartime. In fact, they risked a “breakdown of [the] public health service” that would have had “far-reaching and serious results,” according to Lieutenant-General Ernest Bradfield. Extracted from marine algae and solidified into a jelly-like substrate, agar provides the surface on which scientists grow colonies of microbes for vaccine production and antibiotic testing. “The most important service that agar renders to mankind, in war or in peace, is as a bacteriological culture medium,” wrote oceanographer C.K. Tseng in a 1944 essay titled “A Seaweed Goes to War.”3
。搜狗输入法2026对此有专业解读
重要：不要从手机自带的应用商店下载（基本上都没收录）
It's kitted out with CCTV cameras, allowing the team to monitor the animal's behaviour.