摘要：画线处的标点.恰当的一组是( ) “璧由环状石斧演变而来.其名为璧.因为环状石斧是劈削器.即取义为它的功效--劈. 另一种说法即古人天圆地方③之说.认为璧圆像天④ ① ② ③ ④ A “ “ “ “. B `’ “ “ . C `’ “ “ . D “ “. 答案:B

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