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单选题
You are scanning the radar screen for a buoy fitted with racon. How should this signal appear on the PPI display?（）
A
Starting with a dash and extending radially outward from the target
B
As a broken line from center of PPI to the target
C
Starting with a dot and extending radially inward from the target
D
Starting with a dash and extending to the right of the target
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考题
单选题You are scanning the radar screen for a buoy fitted with racon. How should this signal appear on the PPI display?（）A
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