当正电荷从元件上电压的“+”极经元件运动到电压的梦一极时与此电压相应的电场力要对电荷作功，这时，元件释放能量。（）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='11419' and id < 902166 and id<>'902166' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='11419' and id > 902166 and id<>'902166' order by id asc limit 5