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What is the approximate range of MF radio wave
问题详情
What is the approximate range of MF radio waves during the day time？
A.30 nautical miles
B.600 nautical miles
C.150 nautical miles
D.1200 nautical miles请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：C
考点：
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