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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\">眼睛结构的深入了解</h4><div class=\"download_card_msg\">&ensp;&ensp;&ensp;&ensp;眼睛是人类感官中最重要的器官。人们在读书认字、看图赏画、观看演出、欣赏美景等无不用到眼睛。人的眼睛非常敏感，能辨别不同的颜色、不同的光线，再将这些视觉形象信息转变成神经信号，传送给大脑。如果眼。下面小编给大家分享眼睛结构的深入了解，希望能帮助到大家。 眼睛结构的深入了解文档下载网址链接：</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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