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2.炒了紅鳳菜時,菜汁剛開始呈紫色,後來因為加了醋,顏色變成粉紅色。吃完後用肥皂水沖洗盤子時,菜汁又變成藍色。如果將紅鳳菜汁加在下列哪一種溶液中,顏色會變成粉紅色?(A)小蘇打 (B)檸檬汁 (C)米
問題詳情
2.炒了紅鳳菜時,菜汁剛開始呈紫色,後來因為加了醋,顏色變成粉紅色。吃完後用肥皂水沖洗盤子時,菜汁又變成藍色。如果將紅鳳菜汁加在下列哪一種溶液中,顏色會變成粉紅色?
(A)小蘇打
(B)檸檬汁
(C)米酒
(D)食鹽。
參考答案
答案:B
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40. 下列那一項不是世界衛生組織所提出的健康城市的健康指標?(A)低出生體重比率。(B)嬰兒死亡率。(C)墮胎率[相對於每一個活產數]。(D)總死亡率。
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3.已知有甲、乙、丙三種液體各為酸性、鹼性及酚酞溶液。將甲或乙與丙混合均呈無色。但當取甲與乙混合顏色呈紅色,則酸性液體應該是(A)甲(B)乙(C)丙(D)無法推斷
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