用惰性电极电解一定量的硫酸铜溶液，通电一段时间后，向电解后的溶液中加入0.1mol Cu(OH)2固体，恰好能使硫酸铜溶液恢复原来的浓度和质量，则在电解过程中转移的电子的物质的量为 ( )
| A．0.2mol | B． 0.4mol | C．0.5mol | D．0.6mol |
相关试题
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| A．being run | B．run | C．to run | D．running |
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| A．a; 不填 | B．the; 不填 | C．the; an | D．a ; the |
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| A．as a result of | B．on top of | C．in front of | D．in need of |
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