某同学组装了下图所示的电化学装置。电极I为Al，其他电极均为Cu，则
| A．工作一段时间后，C烧杯的PH减小 |
| B．电极I发生还原反应 |
| C．盐桥中的K+移向A烧杯 |
D．电流方向：电极Ⅳ→ →电极I |
相关试题
What I need is_____ book that contains ______ABC of oil painting.
| A．a; 不填 | B．the; 不填 | C．the; an | D．a ; the |
Jenny nearly missed the flight______ doing too much shopping.
| A．as a result of | B．on top of | C．in front of | D．in need of |
The CDs are on sale! Buy one and you get ______ completely free.
| A． | other | B． | others | C． | one | D． | ones |
I’m sure that your letter will get______ attention. They know you’re waiting for the reply. 
| A．continued | B．immediate | C．careful | D．general |
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