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單項(xiàng)選擇題

原始分?jǐn)?shù)是：（）

A.無(wú)參照點(diǎn)的分?jǐn)?shù)
B.以平均數(shù)為參照點(diǎn)的分?jǐn)?shù)
C.有人定參照點(diǎn)的分?jǐn)?shù)
D.有絕對(duì)零點(diǎn)的分?jǐn)?shù)

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