Some are pricey—a three-week intensive program can cost $4, 500 or more—but most offer scholarships.

2017年6月六级真题（第三套）阅读 Section B

The Math Olympiad Summer Training Program is a three-week math camp held by the Mathematical Association of America that leads straight to the international championship and is free for those who make it.

2017年6月六级真题（第三套）阅读 Section B