所屬科目:船舶通訊與航海英文(概要)
6. The symbol listed below on the chart means: (A) Flood stream with speed 2 knots (B) Ebb stream with speed 2 knots (C) Sea current with speed 2 knots (D) Breeze wind with 2 knots
7. Please refer to the attached sextant figure, the part that marked 「J」is: (A) Telescope (B) Frame (C) Arc (D) Index arm