硝基芬是一种发色性头孢菌素底物。
Nitrocefin is a chromogenic cephalosporin substrate. which changes color from yellow to red upon beta-lactamase mediated hydrolysis.
他们强调了一种由比利时经济学家罗伯特•特里芬于1960年发现的“一种冲突”的新版本。
They highlight a new version of a tension that Robert Triffin, a Belgian economist, identified in 1960.
未来动向：根据《赫芬顿邮报》一位发言人称，它将积极进行国际扩张，还将在整个网站发布更多的视频。
What's next: Aggressive international expansion and more video across the entire site, according to a HuffPost spokesperson.
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