问题
单项选择题
The Inmarsat SES operator can choose the most suitable CES according to（）.
A.his service and position
B.time and course
C.tide and speed
D.type of his ship
答案
参考答案：A
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The Inmarsat SES operator can choose the most suitable CES according to（）.
A.his service and position
B.time and course
C.tide and speed
D.type of his ship
参考答案：A
