English-to-Chinese Quiz app to practice 150 谚语 required for Singapores O Level Higher Chinese. Companion to 谚语 Flashcards app, to choose correct answer among 4 谚语 from a given explanation. Enabling "Incremental DB" allows for Quiz to run with incremental sets of 10 谚语 before including the next 10 in each subsequent round. Disabling "Incremental DB" will test the full 150 谚语.