在100mL某混合溶液中，c(HNO3)＝0.4 mo/lL、c(H2SO4)＝0.1 mol/L，向其中加入1.92gCu粉，微热充分反应后溶液中的c(Cu2＋)为
| A．0.15mol/L | B．0.225mo1/L | C．0.3mo1/L | D．无法计算 |
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