The lecture given by the professor from Nanjing University covered the ________of audio devices，beginning with Thomas Edison's first recording.
A．change B．revolution
C．reform D．evolution
The lecture given by the professor from Nanjing University covered the ________of audio devices，beginning with Thomas Edison's first recording.
A．change B．revolution
C．reform D．evolution
D 考查词义辨析。change“改变”；revolution“革命”；reform“改革”；evolution“演变，逐步发展”。此处指“音频设备的发展(过程)”。