Analysis of test questions: The publication of the book "Gourmet Translation Garden-English Translation of Chinese Menus" spreads China culture through gourmet menus, and C is correct; The practice of materials is to spread China culture better, but it can't enrich the connotation of China culture. A is wrong; The material does not reflect the spread of western food culture, and B does not match the meaning of the question; The differences between Chinese and western food cultures will not be reduced because of the publication of D Mistake.

Comments: This question examines students' understanding and application of cultural communication through food exchange, which requires students' ability in general and has moderate difficulty.