题目解析:
vital: 至关重要的,生死攸关的。A是有吸引力的;B是必要的;C是通常的;D是实际的,实用的。所以B的essential正确,两者都可以替换important。 对应原文 In order to understand ancient Egyptian art, it is vital to know as much as possible of the elite Egyptians' view of the world and the functions and contexts of the art produced for them.