48. 船舶氣象觀測報告時,露點溫度電碼(Dew Point Temperature Group)為何?
(A)1 sn T T T
(B)2 Sn Td Td Td
(C)4 ix h V V
(D)N d d f f

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統計: A(5), B(22), C(4), D(3), E(0) #2501301