Question

Name the nagrams who occasionally performed administrative functions in towns

Answer 1

Explanation:

Where was the Tang dynasty established? Q18: When was the Tang dynasty

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Answer 2

Answer: The concept of refractive index applies within the full electromagnetic spectrum, from X-rays to radio waves. It can also be applied to wave phenomena such as sound. In this case the speed of sound is used instead of that of light, and a reference medium other than vacuum must be chosen.

Explanation:

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