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| 1. |
Tianyan is the world's largest filled aperture radio telescope. It consists of a fixed 500 m dish constructed in a natural depression in the landscape. Where is it located? |
| A. | Zeienchukskaya, Russia |
| B. | Guizhou, China |
| C. | Arecibo, Puerto Rico |
| D. | Sriharikota, India |
| Answer» C. Arecibo, Puerto Rico | |