問題詳情

39.The symbol at Q2 means:
(A)Obstruction or danger to navigation the exact nature of which is specified
(B)Obstruction or danger to navigation the exact nature of which is not specified
(C)Obstruction, depth know
(D)Obstruction, depth un-know

參考答案

答案:C
難度:簡單0.75
統計:A(0),B(1),C(3),D(0),E(0)

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