The design of multimedia courseware is the key link affecting the courseware quality and teaching results. 多媒体课件设计是影响课件质量和教学效果的关键环节。
Perhaps the most successful piece is a dumbbell design cufflink with four black pearls suspended on a bar of pav?diamonds. 或许最成功的一件作品是一件设计成哑铃型的袖扣，四颗黑珍珠悬挂在一个钻石棒上。
