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PHILIP
references and index 这个词组的意思是：“参考文献和索引”，有一点不明白，这里为什么reference使用的是复数（plural），而index使用的是单数（singular）。
7 dec. 2012 00:38
Antwoorden · 2
因为参考文献有很多，索引或者目录只有一个。
13 december 2012
你的问题不是很清晰哪
8 december 2012
Heb je je antwoorden nog steeds niet gevonden?
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PHILIP
Taalvaardigheden
Chinees (Mandarijn), Chinees (Shanghainees), Chinees (Taiwanees), Engels
Taal die wordt geleerd
Engels
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