单选题 How to update a terminal with the ship's position? ①Automatically, by using an electronic navigational device or a GPS; ②Manually, by keying the position coordinates directly into the terminal at least once every 4 hours; ③Manually, by keying the position coordinates directly into the terminal once every day.
相关试题
单选题 What is the primary purpose of the GMDSS?
单选题 The communication system used by the GMDSS includes ______.
单选题 The GMDSSis a world-wide communication network combining ______ with ______.
单选题 The GMDSS defines four sea areas based on the ______.
单选题 Which statement is false regarding a GMDSS-equipped ship?
单选题 The GMDSS is composed of ______.
单选题 GMDSS is the abbreviation of ______.
单选题 The GMDSS is composed of ______.
2024-10-13 
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