【单选题】下列哪种细菌常用噬菌体分型法追溯传染源?( )
【单选题】( )He always talks in class. That really makes his teacher _________ .
【简答题】He always makes fun _____ others, so almost everyone dislikes him.
【单选题】Animal migration is a seasonal or periodic movement of animals in response to changes in climate or food ______, or to ensure reproduction.
【单选题】护士指导患者做超声雾化吸入时,操作中不妥的是
【单选题】Jake always makes us laugh, he is much ______ than his brother. [ ]
【单选题】Jack always makes us laugh, he is much _____ than his brother. [ ]