单选题Deviation which is maximum on intercardinal compass headings may be removed by the（）.AFlinders barBtransverse magnetsCfore-and-aft magnetsDsoft iron spheres on the sides of the compass
单选题
Deviation which is maximum on intercardinal compass headings may be removed by the（）.
A
Flinders bar
B
transverse magnets
C
fore-and-aft magnets
D
soft iron spheres on the sides of the compass
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