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d.innerHTML = d.innerHTML + '<a class=\"download_word download_word_lb\" href=\"javascript:;\" id=\"vipdown\" onclick=\"showpay(2)\"><div class=\"download_card\"><div class=\"card_nr card_nr_lb\"><h4 class=\"card_bt\">脉冲响应与方差分解分析</h4><div class=\"download_card_msg\">&ensp;&ensp;&ensp;&ensp;20世纪末以来，中国钢铁产业高速发展。在需求的强劲拉动下，市场规模和产量急剧扩大，企业进入剧烈，2005年，中国钢铁产业的钢产量和企业数量已分别是1999年的2．82倍和2．51倍，产能、产量。下面小编给大家分享脉冲响应与方差分解分析，希望能帮助到大家。 脉冲响应与方差分解分析文档下载网址链接：</div></div><div class=\"download_card_btn download_card_btn_lb\"><div class=\"content_box_tj\"><span>推荐度：</span><img src=\"/skin/zhann/images/icon_star.png\" alt=\"\">	<img src=\"/skin/zhann/images/icon_star.png\" alt=\"\">	<img src=\"/skin/zhann/images/icon_star.png\" alt=\"\">	<img src=\"/skin/zhann/images/icon_star.png\" alt=\"\"></div><div class=\"downlod_btn_right demo_tc downlod_btn_right_lb\"><em class=\"downlod_icon\"></em>点击下载文档<span>文档为doc格式</span></div> </div></div></a>';
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