An airplane should NOT send which signal in reply to a surface craft?（）<br>A:Opening and closing the throttle<br>B:Rocking the wings<br>C:Flashing the navigational lights off and on<br>D:Flashing Morse T

An airplane should NOT send which signal in reply to a surface craft?（）
A:Opening and closing the throttle
B:Rocking the wings
C:Flashing the navigational lights off and on
D:Flashing Morse T

出自：海船船员证

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