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As more workers have their own personal computers at work, e-mails are beginning to take over formal memo writing in many companies. Email messages are written, sent, and usually read on a computer screen. There are several advantages in sending e-mail messages. E-mails can be sent readily to anyone listed in your address book, a feature that lets you store frequently used e-mail addresses. Messages can be sent to as many people as you want with a simple click on the “send” button. Whether long or short, documents can be sent in seconds. Messages are sent in real time, and the receivers can read an e-mail any time anywhere they log on an e-mail account. It doesn.t matter whether the receivers are sitting before the computer screen or not while you write the e-mail. The messages are always held in an electronic mailbox. You can also attach files in your e-mails. Documents from other software programs can be attached to the e-mail message. Once you are used to working with e-mails, it improves work efficiency a lot. Besides, it is relatively inexpensive in the long run and it saves paper.

1-1、Nowadays, many companies still use formal memo writing.
A、√
B、×

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出自：国家开放大学网络实用技术基础

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