35. “Obstruction which has been swept by wire to the depth shown” - it will be marked in the chart by:
(A)
(B)
(C)
(D)
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統計: A(14), B(23), C(74), D(15), E(0) #2335131
統計: A(14), B(23), C(74), D(15), E(0) #2335131