A.所有相關(guān)詞檢索 B.所有副主題詞檢索 C.所有下位主題詞檢索 D.所有相關(guān)詞和下位主題詞檢索
A.R47/CM2-2、R473.72/CH2/1、R423.5/CY3-3、R47/CP1 B.R473.72/CH2/1、R47/CM2-2、R423.5/CY3-3、R47/CP1 C.R47/CP1、R47/CM2-2、R473.72/CH2/1、R423.5/CY3-3 D.R423.5/CY3-3、R47/CP1、R47/CM2-2、R473.72/CH2/1