r = S.get(url, timeout=10)
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.
。业内人士推荐爱思助手下载最新版本作为进阶阅读
// Create a push stream，这一点在Line官方版本下载中也有详细论述
Последние новости
url TEXT PRIMARY KEY,