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【单选题】
下表是某酸碱指示剂在不同的pH范围内显示的颜色: 颜色 红 橙 绿 蓝 紫 pH 范围 1~3 4~5 6~7 8~10 11~14 向滴有少量该指示剂的稀盐酸中,逐滴加入氢氧化钠溶液,出现的颜色变化是
A.
由紫色到红色
B.
由无色到蓝色
C.
由蓝色到绿色
D.
由红色到蓝色
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