MCQOPTIONS
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				| 1. | 
                                    The cut off point for blood lead level above which clinical symptoms appear is | 
                            
| A. | 20 g/100 ml | 
| B. | 50 g/100 ml | 
| C. | 70 g/100 ml | 
| D. | 100 g/100 ml | 
| Answer» D. 100 g/100 ml | |