In ____ of quality, our make is superior.

教学设计的成果是经过验证、能实现预期功能的（）

We look forward to ____ trial order.

CAI系统主要辅助的对象是（）

We cannot see any possibility of business ____ your price is too high.

CAI系统中的教学媒体是（）

We are willing to renew the agreement on the same terms ____ last.

扩音机与信号源联接时要注意()匹配。

We will not be held responsible for any damage which results ____ rough handling.

可用来制作投影片的材料必须是（）