题目内容
Excel电子表格中A1到C5为对角构成的区域为______。
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在Excel单元格引用中，B5：E7包含______个单元格？
Public speaking can be anything from making a speech at a club to doing a presentation at work or saying a few words at a birthday party, a funeral etc.
Most people don't like giving public speechonly because they think it's a waste of time.
If you follow the given instructions, you will feel less anxious:Be convinced of your information;Be yourself and show your audience a perfect speech;Establish rapport early;Have a positive frame of mind.
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