Предмет: Химия, автор: UnicornPanda

помогите пожалуйста,кто может

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Автор ответа: Valery0210

Ответ:

Объяснение:

Очевидно, что там CO2, а в остальных случаях CO

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Electronic
mail, or e-mail, is your personal connection to the world of the Net. Every one of the millions of people
around the world who use the Net have their own e-mail address. A growing
number of "gateways" tie more and more people to the Net every day.
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generated an address for you, as well. The basic concepts behind e-mail parallel
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to people at their particular addresses. In turn, they write to you at your
e-mailbox address. You can subscribe to the electronic equivalent of magazines
and newspapers. E-mail has two distinct
advantages over regular mail. The most obvious is speed. Instead of several
days, your message can reach the other side of the world in hours or even
minutes (depending on where you drop off your mail and the state of the
connections between there and your recipient). The other advantage is that once
you master the basics, you'll be able to use e-mail to access databases and
file libraries. E-mail also has advantages over the telephone. You send your
message when it's convenient for you. Your recipient responds at his convenience.
No more telephone tag. And while a phone call across the country or around the
world can quickly result in huge phone bills, e-mail lets you exchange vast
amounts of mail for only a few pennies -- even if the other person is in New
Zealand. E-mail is your connection to help -- your Net lifeline. No matter how hard you try, no matter where
you look, you just might not be able to find the answer to whatever is causing
you problems. But when you know how to use e-mail, help is often just a few
keystrokes away: ask your system administrator or a friend for help in an
e-mail message.

Eventually,
you'll start corresponding with people, which means you'll want to know how to
address mail to them. It's vital to know how to do this, because the smallest mistake
-- using a comma when you should have used a period, for instance, can bounce
the message back to you, undelivered. In this sense, Net addresses are like
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other mail.

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