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【单选题】
在海上接收劳兰C信号的有效作用距离，白天地波为（）海里。
A.
700
B.
1400
C.
2300
D.
1200
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【单选题】The report came to the British on May 21, 1941. The German battleship Bismarck, the most 1 warship in the world, was moving out into the Atlantic Ocean. Her task: to destroy the ships 2 suppli...
A.
end
B.
sea
C.
fight
D.
day
【单选题】最大指示空速用海里/时表示.（）
A.
The maximum instruction airspeeds are shown in nm per hour.
B.
The maximum indicated airspeeds are shown in nm per hour.
C.
The maximum instruction airspeeds are shown in knots.
D.
The maximum indicated airspeeds are shown in knots.
相关题目：
【单选题】The report came to the British on May 21, 1941. The German battleship Bismarck, the most 1 warship in the world, was moving out into the Atlantic Ocean. Her task: to destroy the ships 2 suppli...
A.
end
B.
sea
C.
fight
D.
day
【单选题】最大指示空速用海里/时表示.（）
A.
The maximum instruction airspeeds are shown in nm per hour.
B.
The maximum indicated airspeeds are shown in nm per hour.
C.
The maximum instruction airspeeds are shown in knots.
D.
The maximum indicated airspeeds are shown in knots.
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