题目：
碱度测定的结果是酚酞碱度等于甲基橙碱度，该水样中反映碱度的离子有（）。
A、OH和HCO
B、CO无OH和HCO
C、OH无CO和HCO
答案：
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参考答案：从业人员健康检查及沐浴场所卫生检查结果
碱度测定的结果是酚酞碱度等于甲基橙碱度，该水样中反映碱度的离子有（）。A、OH和HC
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