countdown is always exciting. Many kids know the problems so wel

来源: soundofsilence 于 2013-05-31 15:12:10 [] [旧帖] [给我悄悄话] 阅读数 : (334 bytes)

do get the answer before I could finish reading the problem, but not always. Chapter is ok, not as intense, state is intense. National must be very very intense. The problems are the same for all the states, so especially written part are quite comparable across states. Countdown problems are the same but speed to solution may vary.

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