题目内容
(创新题)Tom has nine coins(硬币)－ three siliver coins(S), three gold coins(G)and three copper coins(C)．
He wants to rearrange(重新组合)them so that every
SILVER coin touches(接触)a GOLD one, every
GOLD coin touches a COPPER one, and every
COPPER one touches a SILVER one．
Show him how to do it．
答案：
解析：
解析：
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The coins could be rearranged like this．
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