问题
单项选择题
Distress signal are always stored in the memory so as to start（）.
A.local-mode coverage
B.SAR operations
C.data process
D.continuous broadcast
答案
参考答案：D
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Distress signal are always stored in the memory so as to start（）.
A.local-mode coverage
B.SAR operations
C.data process
D.continuous broadcast
参考答案：D