题目

_____ in the regulations that you should not tell other people the password of your e-mail account. A. What is required             B. What requires             C. It is required                  D. It requires   答案：C文艺复兴时期，产生了许多不朽的名作，下列作品中属于达?芬奇的作品是①《最后的晚餐》  ②《蒙娜丽莎》  ③《圣母像》  ④《李尔王》A.①②B.②③C.①④D.③④