接下来可以练习AMC，明年初AMC8过20题，后年初AMC10过20题，大后年AIME过10题。。。牛娃就诞生了

来源: 兔8 于 2017-11-03 19:04:37 [旧帖] [给我悄悄话] 本文已被阅读：次

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