The methods used in Asynchronous Transfer Mode (ATM)are switch technology and(17)is used to describe this mode.A．cell exchangeB．message exchangeC．information exchangeD．packet exchange

题目内容（请给出正确答案）

The methods used in Asynchronous Transfer Mode (ATM)are switch technology and(17)is used to describe this mode.

A．cell exchange

B．message exchange

C．information exchange

D．packet exchange

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