【判断题】Questions 4 to 6 are based on the following passage. The audio players of today have their roots in the Sony Walkman brand. Aside from radio devices, Sony was the first to introduce a portable music p...
【简答题】The audio players of today have their roots in the Sony Walkman brand. Aside from radio devices, Sony was the first to introduce a portable music player. The first Walkman devices used magnetic audio ...