 
			 
			MCQOPTIONS
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				| 1. | DGPS is based on the concept that bias errors in the position of locations in a given local area, aresame if their distances are within | 
| A. | 25 km | 
| B. | 50 km | 
| C. | 75 km | 
| D. | 100 km | 
| Answer» E. | |