【题目】Remember that ______ is better than cure, so brush your teeth at least twice a day and visit your dentist for regular check-ups.
A.priority
B.privilege
C.principle
D.prevention

【答案】D
【解析】考查名词。A. priority优先，优先权； B. privilege特权；C. principle原则；D. prevention预防。句意：记住，预防胜于补救，所以每天至少要刷两次牙，并且要定期做牙科检查。故选D。