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As many as300 of the 720 paintings attributed to Rembrandt may actually be the works of his students or other admires.

(a)the 720 paintings attributed to Rembrandt may

(B)the 720paintings attributed to be Rembrandt 's might

(C)the 720paintings  that were attributed to be by Rembrandt may

(D)the 720Rembrandt paintings that were once attributed to him might

(E)Rembrandt's paintings, although 720 were once attributed to him,may

怎么分析句子提干?

我是这样分析的：

300是句子的真正主语，谓语动词当然就是may  be. attributed to分词结构作定语修饰720 paintings.

句子的意思大概就是说在720幅归功于伦布郎的画中，有320幅可能是他的学生的作品。