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  20/20 is just a measurement of how clearly you are able to see at a particular distance. If your visual acuity report says that you have a 20/20 vision then that means you can clearly see objects at a distance of 20 feet 1. If you have a 20/40 vision then that means you need to stand at 20 feet to see anything that a person with normal vision can see from 40 feet.

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Added on 2021/09/24 | 1 Keys | 0 +

A cryptocurrency wallet is a device, physical medium, program or a service which stores the public and/or private keys for cryptocurrency transactions. In addition to this basic function of storing the keys, a cryptocurrency wallet more often also offers the functionality of encrypting and/or signing information.