Then they try to teach the students something with a specific presentation style, like using visual AIDS, and do a follow up test to see how much they learned.
然后他们试着用一种特定的演讲风格教学生一些东西，比如使用视觉辅助，和做一个后续测试，看看他们学到了多少。
About a year ago, an industry standards group asked me to do a presentation on how XHTML 2 might be useful to publishers.
大约在一年以前，一个行业标准小组要我介绍一下XHTML2可能对发布者有哪些用处。
About a year ago, an industry standards group asked me to do a presentation on how XHTML 2 might be useful to publishers.
大约在一年以前，一个行业标准小组要我介绍一下XHTML2可能对发布者有哪些用处。
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