MCQOPTIONS
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| 1. |
Name the bat-winged drone touched down smoothly on the deck of a US aircraft carrier on 10 July 2013, marking a historic milestone for robotic flight? |
| A. | X-47A |
| B. | X-47B |
| C. | X-47C |
| D. | X-47D |
| Answer» C. X-47C | |