17.翻譯：能見度預期在5浬至10浬之間變化。
(A) Visibility is expected variable between 5 and 10 nautical miles.
(B)Visibility is expected stable between 5 and 10 nautical miles.
(C)Visibility is expected decreasing between 5 and 10 nautical miles.
(D)Visibility is expected increasing between 5 and 10 nautical miles.
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