<文意選填>[題組:第21題到第30題]Hundreds of years ago, a savory idea-called the century egg-was hatched in rural China. As the story goes, a farmer found naturally preserved duck eggs in a muddy pool of water and slaked lime. After surviving a tasting, he set out to replicate them manually, resulting in a ______ that would endure for centuries as a comfort food in Hong Kong, China and parts of Southeast Asia. (A) provokes (B) exotic (C) delicacy (D) dates back (E) refreshed (F) implies (G) appetizing (H) mixture (I) goes by (J) unchanged (K) challenge (L) favor
