document.write("
"); document.write(""); document.write("怎样聆听音乐 | "); document.write(" | "); document.write(" | "); document.write("||||||
"); document.write("音及音高 | "); document.write(" | "); document.write(" | "); document.write("||||||
"); document.write("合唱知识:何为合唱团? | "); document.write(" | "); document.write(" | "); document.write("||||||
"); document.write("合唱知识:发声常见的弊病 | "); document.write(" | "); document.write(" | "); document.write("||||||
"); document.write("合唱知识:发声 共鸣 呼吸 | "); document.write(" | "); document.write(" | "); document.write("||||||
"); document.write("音乐知识:音乐语言的要素 | "); document.write(" | "); document.write(" | "); document.write("||||||