单选题全球航线上,在相同信噪比的情况下,罗兰C地波在海上的作用距离最远的区域是()。A北大西洋(夏季)B北大西洋(冬季)C大西洋(赤道)D太平洋中部
单选题
全球航线上,在相同信噪比的情况下,罗兰C地波在海上的作用距离最远的区域是()。
A
北大西洋(夏季)
B
北大西洋(冬季)
C
大西洋(赤道)
D
太平洋中部
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