Substances differentiated tissues secrete are called chalone.已经分化的组织分泌物称为抑素.Objective : To purify rabbit hepatic chalone HC , and investigate its biological activity, purity and molecular weight.目的: 制备家兔肝抑素纯品, 检测其生物活性 、 ...
They held daily press briefings.他们每天召开新闻发布会。Written stage briefings shall provide the following minimum information to competitors.演示文稿册至少需提供下列信息.In briefings to investors, Rio is still appealing to pragmatism.在对投资者的简报中,...