The half - life of francium is 22 minutes.钫的半衰期是22分钟.Francium is the densest of the Alkali Metals and also radioactive.钫是碱金属中密度最大的,具有放射性.Even Francium's most stable isotope, Francium - 223 only has a half - life of ...
Nicorandil was discontinued and the patients were begun on alternative anti - anginal medication.患者停用了尼可地尔,并开始接受替代的 抗 心绞痛药物疗法.It discontinued some vehicles and closed dealerships and factory factories.它不再继续一些交通工具和关闭了代理权和...
He always takes the role of a mediator in any dispute.他总是在争论中充当调停人的角色.He will appear in the role of mediator.他将出演调停者.Who will act as mediator in the dispute.谁在争端中充当调解人?...