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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)八年级上册物理整理知识点描述：物理学是一种自然科学，注重于研究物质、能量、空间、时间，尤其是它们各自的性质与彼此之间的相互关系。接下来小编在这里给大家分享一些关于八年级上册物理整理知识点，供大家学习和参考，希望对大家有所帮助。八年级上册物理整理知识点第一章：走进物理世界</a>';
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