2. 计算机
  3. ATM when referring to computers is a dedicated, connection switching technology that organizes digital data into 53-byte(69)unit

ATM when referring to computers is a dedicated, connection switching technology that organizes digital data into 53-byte(69)unit

admin2009-02-15  53
问题 ATM when referring to computers is a dedicated, connection switching technology that organizes digital data into 53-byte(69)units and transmits them over a physical(70)using digital signal technology. ATM is capable oftransniitfing at speeds of 155 or 622 MBit/s and faster.
选项 A、medium
B、media
C、matter
D、plastid
答案B
解析 cell意思为“单元，细胞”，cellunits在题目中意思为“信元”；medium意思为“介质，媒质”，它的复数形式为media或者mediums。本题主要介绍ATM技术传送的信元及其传输速率。
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