It is difficult to know exactly when the shift from gelatine to agar occurred. As often happens for scientific breakthroughs, agar was likely adopted incrementally alongside the use of other growth media. In 1913, for example, the first diagnosis of Serratia marcescens as a human pathogen was made by growing it on agar as well as on potatoes.
Burger King is one of several fast food chains experimenting with artificial intelligence. Yum Brands said last spring it was partnering with Nvidia to develop AI technologies for its brands, which include KFC, Taco Bell and Pizza Hut.
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const cur = arr[i]; // 当前遍历的元素值