题目内容
如图所示电路,消耗电功率为2W,下列表达式中正确的是( )。
2024-10-25
A.(8+R)I²=2,(8+R)I=10
B.(8+R)I²=2,-(8+R)I=10
C.-(8+R)I²=2,-(8+R)I=10
D.-(8+R)I²=2,(8+R)I=10
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68945' and id < 4461056 and id<>'4461056' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68945' and id > 4461056 and id<>'4461056' order by id asc limit 5