下图为铜一锌一稀硫酸构成的原电池示意图，下列说法错误的是
| A．锌片为负极，且锌片逐渐溶解 |
| B．铜片为正极，且铜片上有气泡 |
| C．电子由铜片通过导线流向锌片 |
| D．该装置能将化学能转变为电能 |
相关试题
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 |
All the dishes in this menu, ______ otherwise stated, will serve two to three people. 
| A．as | B．if | C．though | D．unless |
The children loved their day trip, and they enjoyed the horse ride ______.
| A．most | B．more | C．less | D．little |
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