题目

On the basis of cultural relativism, the values of artistic works are simply reflections of local social and economic conditions. Such a view, however, fails to explain the ability of some works of art to excite the human mind across cultures and through centuries. History has seen the endless productions of Shakespearean plays in every major language of the world. It is never rare to find that Mozart packs Japanese concert halls, as Japanese painter Hiroshige does Paris galleries. Unique works of this kind are different from today’s popular art, even if they began as works of popular电场中某个面上所有点的电势都相等，但电场强度都不同，这个面可能是（　　）A．等量同种电荷的中垂面B．等量异种电荷的中垂面C．以孤立点电荷为球心的某一球面D．匀强电场中的某一等势面