今有甲、乙、丙三瓶等体积的新制氯水，浓度均为0.1mol·L-1。如果在甲瓶中加入少量的NaHCO3晶体（m mol），在乙瓶中加入少量的NaHSO3晶体（m mol），丙瓶不变。片刻后，甲、乙、丙三瓶溶液中的HClO的物质的量浓度的大小关系是（溶液体积变化忽略不计） （ ）
| A．甲=乙>丙 | B．甲>丙>乙 | C．丙>甲=乙 | D．乙>丙>甲 |
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