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【初高中音乐学科】u3.huatu.com/tianjin/201910/102813.pdf资格证 教师事业部 乘华图翅膀 圆教师梦想 6 3.一段曲式:由一个乐段构成乐曲的曲式,称为一段体。两句结构乐段、三句结构乐段、四
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