1. what CA parents are whining about? 2. students from nonfeeder

states have better quality in ave? especially those from central, midwest states with large population?

所有跟帖： 

• CA USAMO 就占了全国的1/4， USAPHO 好像是1/3到1/4. USACO 好像比例更高。 -swj2000- ♀ (0 bytes) () 04/16/2016 postreply 09:45:56

• USACO是指进了白金division, 还是进了camp？ -acreek- ♀ (0 bytes) () 04/16/2016 postreply 09:54:56

• 白金。 -swj2000- ♀ (0 bytes) () 04/16/2016 postreply 10:06:13