Passed from father to son, the music has not changed for eight centuries，and among the richer Naxi people, ________ knowledge of this music showed that you were ________real gentleman.A.a; aB.the, 不填C.不填;aD.the; the
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C解析考查冠词题。这种音乐知识是很广泛的，所以是泛指，而knowledge又是不可数名词，故不填；a real gentleman一个真正地绅士。