MCQOPTIONS
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| 1. |
Astronomers in the third week of February 2013 discovered six speeding stars which were racing through the space at a speed of 3.2 million kilometres per hour. The mass of these stars is equivalent to what? |
| A. | Milky Way |
| B. | Moon |
| C. | Earth |
| D. | Sun |
| Answer» E. | |