Recognized as ________ world cultural heritage by the United Nations in 2002, paper cutting is ________ practice which originated in ancient China.A.the; aB.a; aC.the; theD.a; the
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B解析这题考查冠词的用法:第一空填a,表示一个世界文化遗产,第二空填a,a practice“一个做法”,2002被联合国列为世界文化遗产的剪纸是起源于古代中国一种做法。