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| 1. |
World Radiography Day is observed every year on 8 November. The day marks the anniversary of the discovery of x-radiation, by Wilhelm Roentgen in which year? |
| A. | 1875 |
| B. | 1885 |
| C. | 1895 |
| D. | 1905 |
| E. | 1915 |
| Answer» D. 1905 | |