____ the look on his face, he doesn’t quite unders

____ the look on his face, he doesn’t quite understand what the speaker is sayin

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为了便于数据传输和处理,必需采用数据编码技术。A.正确B.错误

为了便于数据传输和处理,必需采用数据编码技术。A.正确B.错误

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