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प्रश्न
Match the following.
| 1. | Length | kelvin |
| 2. | Mass | metre |
| 3. | Time | kilogram |
| 4. | Temperature | second |
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उत्तर
| 1. | Length | metre |
| 2. | Mass | kilogram |
| 3. | Time | second |
| 4. | Temperature | kelvin |
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