下列叙述正确的是
| A．对于平衡体系:H2(g)+I2(g)==2HI(g)，其它条件不变时，增大体系压强，平衡向正反应方向移动，体系颜色加深 |
| B．—定温度下，物质的量浓度相同的4种溶液①CH3COONa②NaNO3③Na2CO3④NaOH，pH的大小顺序是④>③>①>② |
| C．0.1mol•L-1的氨水加水稀释后，NH3•H2O的电离程度增大，c(OH-)增大，c(H+)减小 |
| D．常温下，c(H+)/c(OH-)=10-10的溶液中:Na+、Al3+、SO-2-、NO3-可大量共存 |
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