视听教学是一个新的教育传播技术.

Audiovisual instruction is a new Technology for Educational Communications.

视听教学是一个新的教育传播技术。

Audiovisual instruction is a new Technology for Educational Communications .

因此，如何发挥教师在多媒体视听教学中的主导作用是当前值得探讨的课题。

Thus how do teachers play their guiding role in video class is the main concern of this paper.