OG详解-OG8 阅读 Q30

Choice C is the best answer because it presents a statement about the difrasismo in cuauhtli in ocelotl that is directly supported by the text. The text begins by describing difrasismo, a device used in Classical Nahuatl poetry. The text then mentions the device’s two functions: a formal one (giving structure to lines of verse) and a ritualistic one. The text indicates that the relation between the words in a difrasismo may appear tenuous without the additional information supplied by Aztec ceremonial culture but that the meaning becomes intelligible in the context of that information. Therefore, the difrasismo’s apparent obscurity can be resolved when considered in the proper cultural context. 
Choice A is incorrect because the text doesn’t indicate that the two nouns used in a difrasismo are semantically equivalent; instead, the text indicates that the two nouns used in a difrasismo make up a single metaphor whose meaning is often intelligible only in the context of information supplied by Aztec ceremonial culture. Choice B is incorrect because the text doesn’t indicate that there’s a relationship between the formal function of the difrasismo and the difrasismo’s intelligibility. Additionally, the text suggests that present-day readers who are familiar with Aztec ceremonial culture wouldn’t find the difrasismo to be unintelligible. Choice D is incorrect because the text doesn’t indicate that the frequency of difrasismo’s use in Classical Nahuatl is a necessary feature of intelligibility: the text indicates that an infrequently used difrasismo would presumably also be intelligible to members of an Aztec audience who are sufficiently familiar with Aztec ceremonial culture.