本帖最后由 Queenie17 于 2017-9-4 10:00 编辑 , k/ e' q# ^9 F5 e' a$ p
6 t1 j/ K, V5 `5 nHigh School Contest Books9 u( ~7 o& J% x$ u; G$ r q
Excellent practice for the SAT! ; g4 U7 ~, D! v& ~6 Y$ jThese books gives classes, clubs, teams, and individuals diversified collections of high school math problems. All of these contests were used in regional interscholastic competition throughout the United States and Canada. 3 L. k7 u$ ]7 f/ v! x2 F! ~3 W
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