 
			 
			MCQOPTIONS
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				| 1. | Adaptive grids change automatically based on ______________ | 
| A. | flow field gradients | 
| B. | time rate of change of the flow properties | 
| C. | grid gradients | 
| D. | time rate of change of the grid points | 
| Answer» B. time rate of change of the flow properties | |