A、found in the center(s) of the compass rose(s)
B、indicated by isogonic lines
C、found in a note on the chart
D、All of the above
更多“Magnetic information on a chart may be （）.”相关的问题
A、north magnetic pole B、south magnetic pole C、magnetic prime vertical meridian D、magnetic equator
A、average wind conditions B、tidal currents C、magnetic variation D、average limits of field ice
A、Heeling magnet B、Flinders bar C、Fore-and-aft magnets D、All of the above can be set on magnetic east or magnetic west headings
A、geographic pole and the magnetic pole B、lubber's line and true north C、horizontal and the magnetic line of force D、compass heading and the magnetic heading
A、A.changes in the earth's magnetic field B、B.nearby magnetic land masses or mineral deposits C、C.magnetic influence inherent to that particular vessel D、D.the magnetic lines of force not coinciding with the lines of longitude
A、A.Magnetic materials of the same polarity repel each other and those of opposite polarity attract B、B.The Earth's magnetic lines of force are parallel to the surface of the Earth C、C.Magnetic meridians connect points of equal magnetic variation D、D.The compass needle(s) will，when properly compensated，lie parallel to the isogonic lines of the Earth
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