【简答题】β-内酰胺类抗生素的化学结构中均具有 , 是与 结合而产菌作用的靶位,也是 灭活抗生素的靶点
【简答题】His ideas are more complex than they seem.
【简答题】β-内酰胺类抗生素化学结构中具有________是与________作用而产菌作用的靶位,也是________灭活抗生素的靶位。
【单选题】 The politician says that he will ____ the welfare of the people.
【单选题】The politician says he will ________ the welfare of the people.
【判断题】β-内酰胺类 是指化学结构中具有β-内酰胺环的一类抗生素,此类抗生素具有杀菌活性强、毒性低、适应症广及临床疗效好的优点。
【单选题】His ideas are invariably condemned as____by his colleagues.
【单选题】His ideas are invariably condemned as __ by his colleagues.
【单选题】His ideas are the same _____ hers. [ ]
【简答题】β-内酰胺类抗生素化学结构中均具有( ),是与( )综合而产菌作用的靶位,也是( )灭活抗生素的靶位。