Deck : General Navigation - 330/2138
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| Under the IALA Buoyage Systems, safe water marks may show a __________. |
| A) composite group-flashing, Fl(2 + 1), red light |
| B) composite group-flashing, Fl(2 + 1), green light |
| C) quick-flashing, Q(9)15s, white light |
| D) white Morse (A) light |
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