This study guide is very accurate at predicting exam questions.
Tips
culture
Huge industry around the gaokao (高考, 'college entrance exam') and civil-service tests. Star teachers who 押题 well - 押中 ('guessed right') - get a near-celebrity following.
memory
押 'to bet/wager' + 题 'question'. Literally 'to bet on which questions will come up.' The gambling metaphor is alive: a teacher can 押中 ('hit the jackpot') or 押错 ('bet wrong').
