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单选题
If there is any doubt as to the proper operation of a radar，which statement is TRUE?（）.
A
Only a radar expert can determine if the radar is operating
B
All radars have indicator lights and alarms to signal improper operation
C
A radar range compared to the actual range of a known object can be used to check the operation of the radar
D
The radar resolution detector must be energized to check the radar
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更多 “单选题If there is any doubt as to the proper operation of a radar，which statement is TRUE?（）.A Only a radar expert can determine if the radar is operatingB All radars have indicator lights and alarms to signal improper operationC A radar range compared to the actual range of a known object can be used to check the operation of the radarD The radar resolution detector must be energized to check the radar” 相关考题
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thatB
ifC
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