一個鹽水樣品的體積為 0 毫升，質量為 0 公克，依有效數字運算之結果，計算其比重(specific gravity)為何？(A)0.833 (B) 3 (C) 2 (D)

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2. 一個鹽水樣品的體積為 20.0 毫升，質量為 24.0 公克，依有效數字運算之結果，計算其比重(specific gravity)為何？
(A)0.833
(B) 8.3
(C) 1.2
(D) 1.20

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