MCQOPTIONS
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				| 1. | 
                                    A steam shovel is a machine designed for moving and lifting material in mining industry such as rock and soil is invented in 1835 by | 
                            
| A. | William C. Durant | 
| B. | William Otis | 
| C. | Jacob Perkins | 
| D. | John Gorrie | 
| Answer» B. William Otis | |