Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.<br>A:great convenience<br>B:finding true north<br>C:magnetic characteristics<br>D:simplicity and reliability

Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
A:great convenience
B:finding true north
C:magnetic characteristics
D:simplicity and reliability

出自：海船船员证

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