【单选题】______ other boys, this is the most diligent one.
【简答题】A.Compare films from different decades. B.Compare films from different countries. C.yze the film they've just seen. D.Study techniques used by film makers.
【单选题】Many parents are always ________ their kids ________ others’.
【单选题】关于主动转运的叙述,正确的是
D.
原发性主动转运所需的能量直接来源于细胞内ATP的分解