题目内容
关于磁感线的概念,下列说法中正确的是( )
2021-07-13
A.磁感线是磁场中客观存在、肉眼看不见的曲线
B.磁感线总是从磁体的N极指向磁体的S极
C.磁感线上各点的切线方向与该点的磁场方向一致
D.两个磁场叠加的区域,磁感线就有可能相交
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku_ where sourceid='14713' and id < 1216674 and id<>'1216674' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='14713' and id > 1216674 and id<>'1216674' order by id asc limit 5