29. Which of the following navigation instruments may have blind sectors?
(A) Gyro Compass
(B) Radar
(C) NAVTEX
(D) ECDIS

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統計: A(28), B(549), C(65), D(44), E(0) #3033229

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29.下列哪些導航儀可能有盲區? (A)...
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