After we make sure the three thins, we can prepare a poudcut presentation following the five outlined points: introduction, ________product description, examples and closing argument.
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In the introduction,don't forget to greet the _______ and introduce yourself.
Telling them that you _____ their questions anytime during your presestation.
Finally, close your production ______briefly.
学习排球首先应学习的是( )技术。
A. 移动
B. 垫球
C. 准备姿势
D. 发球