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d.innerHTML = d.innerHTML + '<a class=\"download_word download_word_lb\" href=\"javascript:;\" id=\"vipdown\" onclick=\"showpay(1)\"><em></em>下载文档(未登录)科学发声之呼吸的步骤描述：空气有肺部出发，经过气管使声带产生波，再通过喉，咽，口，鼻各腔获得共鸣，完成发声．在此过程中，此三个过程的差异决定了发音的情形，但在发各种不同音高，不同音色时，他们之间的配合也是不同的． 人在正常说话时的发声法对以上三个过程没有太多要求，</a>';
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