常我们把传输层、网络层、数据链路层、物理层的数据依次称为( )
A帧(frame),数据包(packet),段(segment),比特流(bit )
B段(segment),数据包(packet ),帧(frame),比特流(bit )
C比特流(bit ),帧(frame),数据包(packet ),段(segment)
D数据包(packet),段(segment),帧(frame),比特流(bit )
A帧(frame),数据包(packet),段(segment),比特流(bit )
B段(segment),数据包(packet ),帧(frame),比特流(bit )
C比特流(bit ),帧(frame),数据包(packet ),段(segment)
D数据包(packet),段(segment),帧(frame),比特流(bit )