题目内容
婴幼儿应多吃蛋、奶等食物，保证维生素D的摄入量，以防止因维生素D缺乏而引起
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Thenumberofmajorpointsyoucandevelopinaspeechdependsonthetimeyouhave.
Introducing irrelevantInformation ofthespeechhelpsustolettheaudiencefocus on the speech.
Using parallel structure to construct the main points ofyourspeechisagoodtechnique.
Since the introduction is the first part of the speech, the speaker should begin outlining the introduction.
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