13. As Hurricane Hugo approached the Atlantic coast, it increased dramatically in strength, becoming the tenth most intense hurricane to hit the United States mainland in the twentieth century and most
   intense since Camille in 1969.

(A)            most intense since Camille in 1969

(B)           most intense after Camille in 1969

(C)           the most intense since Camille in 1969

(D)           the most intense after 1969, which had

Camille

(E)           since 1969 and Camille, the most intense

Idiom

The superlative form is used for comparisons involving more than two elements, and it should be used here because the comparison involves all hurricanes to hit the United States mainland in the twentieth century. Because tenth appears between the and most intense in the first phrase, the must be repeated in the second phrase: the most intense. While in some constructions, such as the most frightening and most intense, the would be understood and so would not need to be repeated, the definite article
  the is required in this
  superlative form construction.
  Since is preferable
  to
  after in this sentence because
  since emphasizes the continuity of the action.

第13题OG解释中列出两种情况,一种可以省略the,另一种必须要加the,有哪位知道关于此的具体规则?

我感觉就是在两个最高级并列的时候后面那个可以省略吧~~~

非NN的看法

按照OG的解释就是说如果两个最高级（相同级别）并列，则后面一个最高级的“THE”可省。

原题中，一个是“第十强”，一个是“最强”，级别不相同，所以必须将定冠词补出，避免语意不清（后者可能也同样理解为第十强）。