39. When visibility is reduced to about 1-2 miles, we say that visibility is __________.
(A) good
(B) very good
(C) moderate
(D) poor

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統計: A(0), B(1), C(1), D(6), E(0) #4055667

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#7682517
本題考什麼觀念 本題考的是能見度等級的...
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