权威考试
85. Why is the ISM Code mandatory? A. to satisfy US coastguards B. to improve safety
C. to get lover insurance premium D. to save money for the company 答案：Ｂ
86. In GMDSS, the purpose of broadcasting MSI is to _________. A. relay distress alerting
B. transmit navigational warnings
C. promulgate meteorological warning and metrological forecast D. improve safety of shipping to avoid distress 答案：
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