航海英語雷達及ARPA的使用單項選擇題每日一練(2019.01.14)

來源：考試資料網

1 When using a radar in a unstabilized mode，fixes are determined most easily from（）.

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2 The ARPA may swap targets when automatically tracking if two targets（）.

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3 Radar reflectors are required for（）.

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4 Which statement is TRUE concerning a vessel equipped with operational radar?（）.

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5 The（）has a built-in world map; most areas are displayed on a scale of 4000 nm from the top to the bottom of the screen，and can be zoomed in to 150 nm.

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