 
			 
			MCQOPTIONS
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				| 1. | The force is _____________ between 2 parallel screw dislocation and ____________ for antiparallel screw dislocation. | 
| A. | attractive, repulsive | 
| B. | repulsive, attractive | 
| C. | attractive, attractive | 
| D. | repulsive, repulsive | 
| Answer» B. repulsive, attractive | |