In a computer, money is sequences of digital signals endlessly recorded, erased, processed, and reprocessed, and endlessly modified by other computers.
句意：钱在电脑中变成了一系列数字信号，这些数字信号要不断地经过其他电脑一次次地录入、删 除、处理、再处理并不断加以修改。signals信号。D选项与划线处意义最为接近，故选D。