目的了解冻干风疹减毒活疫苗的免疫持久性.Objective To study the immunity duration of attenuated live rubella vaccine.预防接种流感活疫苗或减毒活疫苗.Influenza vaccination of live attenuated live vaccine or vaccines.乙脑减毒活疫苗对1～6岁儿童的保护率为95 98%,95%可信限为7203%～994...
The bottom line, he said, is that altruism may rely on a basic understanding that others hae motiations and actions that may be similar to our own.他说, 底线是利他主义可能是基于这样的基本认识:别人也有和我们自己近似的动机和行为.Among his gifts is his capacity...
尽显其宏伟气象的兰斯大教堂景色a view of Rheims Cathedral, in all its splendour这本书是讲气象的.This is a book about meteorology.它虽然名不见经传，但却是不可错过的最具恢宏气象的小镇之一。It is little known, unsung and one of the grandest little towns you could ever wish to...