A.L上各点的磁场强度H的量值相等,不等于0
B.L上各点的磁场强度H等于0
C.
D.L上各点的磁场强度H无法确定
[单选题]A.2B.4C.8D.16
[单选题]A.L上各点的磁场强度H的量值相等,不等于0B.L上各点的磁场强度H等于0C.D.L上各点的磁场强度H无法确定
[单选题]A.2B.4C.8D.16
[单选题]A.2B.4C.8D.16
[单选题]A.2B.4C.8D.16
[单选题]A.2B.4C.8D.16
[单选题]A.2B.4C.8D.16
[单选题]A.2B.4C.8D.16
[单选题]A.2B.4C.8D.16
[单选题]A.45°B.60°C.90°D.120°E.135°