| 1. | It offers all the benefits of the traditional off - line multimedia titles ( like text , graphics , sound , video , interactivity etc . ) plus the extremely attractive distance learning features with real person - to - person interactivity , dedicated on - line services , teachers assistance and other
它提供以除了传统线下多媒体教学所有的优点外，还提供十分吸引人的特性：如人与人的互动，线上服务，教师辅助等。 |
