Ring 

2021年2月2日
Download here: http://gg.gg/o5tva
A ring is a set R equipped with two binary operations + and ⋅ satisfying the following three sets of axioms, called the ring axioms. R is an abelian group under addition, meaning that: (a + b) + c = a + (b + c) for all a, b, c in R (that is, + is associative). A + b = b + a for all a, b in R (that is, + is commutative).Ring Login To My Account
*Join millions of Americans and use the Ring app to get real time crime and safety alerts from your Neighbors. It’s a neighborhood watch for the digital age that creates a ring of security around.
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*Protect your home & watch over what’s important from your phone with video doorbells, indoor & outdoor security cameras, alarm systems & more.
See, Hear and Speak to Visitors
With Ring, you can monitor your home from your smartphone, tablet or PC. Every Ring device features a wide-angle lens and a built-in microphone and speaker, so you can see, hear and speak to anyone on your property from anywhere.
Home Security at your FingertipsRing Security SystemRing.com
Ring’s customizable motion sensors let you focus-in on the most important areas of your home. You’ll get instant alerts as soon as Ring detects motion, so you’ll always be the first to know when anyone steps foot on your property.
Download here: http://gg.gg/o5tva

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