摘要:A 本题考查短语devote oneself to doing something的用法.以及短语rather than要求句子前后保持平衡.所以本题应选择A.

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仔细阅读下面的短文,短文中有10个空格或画线句子。请按照每小题括号内的具体要求完成语法填空、词形变化、句子合并、句子改写以及病句改正等。

  Electronic mail(e-mail)  1  (start)in the late 1960s by the U.S.military.By the 1980s, academics in a number of fields were using e-mail for professional collaboration.The early 1990s   2  (see)an explosion of the use of e-mail and other computer networking tools for a wide range of professional, academic, and personal purposes.

  E-mail is a way of   3  (send)a message from one computer to one or more other computers around the world.First, you   4  (短语动词)the e-mail address of the person you are sending the message to.Then you write the message, or   5  (direct)in a special e-mail software program or first in a word processing program and transfer it into the e-mail software.You should push a button   6   a simple command to send the message.The computer system you are connected to will break the message up into tiny pieces and send them   7  (electronic)to the destination.The pieces might travel numerous routes through other computers on the way.Usually within 2-3-minutes, the pieces will all arrive at their destination, where the   8  (receive)computer will reassemble them into a message.The person   9   the message can check his or her mailbox at a   10  (convenience)time and read the mail.

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