{"show":[{"id":411,"catid":"5617,5869","title":"识别生物与非生物","subtitle":"识别生物与非生物","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/2.png","goals":null,"intro":"生物指具有生命的物体,非生物指不具有生命的物体。\r\n\r\n","ratingnum":0,"rating":0,"hits":27,"teachername":"石利","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":5,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":518,"createdtime":1476927980,"updatedtime":1496221867},{"id":412,"catid":"5869,5617,44411","title":"生物的基本特征","subtitle":"生物的基本特征","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/2.png","goals":null,"intro":"生物的基本特征:1. 生物能生殖和发育;2. 生物能生长;3. 生物能排出身体内产生的废物;4. 生物对外界刺激会作出反应;5. 生物有遗传和变异的特性。\r\n\r\n\r\n\r\n\r\n","ratingnum":0,"rating":0,"hits":28,"teachername":"石利","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":5,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":518,"createdtime":1476928041,"updatedtime":1496221834},{"id":2096,"catid":"77289,5620,5868","title":"显微镜的使用","subtitle":"显微镜的使用","status":4,"type":"normal","price":60,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/1.png","goals":null,"intro":"本节主要介绍显微镜的结构和使用显微镜观察的方法。","ratingnum":0,"rating":0,"hits":36,"teachername":"石利","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":5,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":518,"createdtime":1481618615,"updatedtime":1496221797},{"id":418,"catid":"5619,76849,99510,5868,5618","title":"生物对环境的适应和影响","subtitle":"生物对环境的适应和影响","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/6.png","goals":null,"intro":"生物适应环境的表现有拟态,保护色,警戒色等。\r\n","ratingnum":0,"rating":0,"hits":22,"teachername":"石利","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":5,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":518,"createdtime":1476929472,"updatedtime":1496221734},{"id":1870,"catid":"5876,76849,77289,5619,99510,5868,5618","title":"生物物种的多样性","subtitle":"生物物种的多样性","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/6.png","goals":null,"intro":"生物性状相像,能够相互交配并繁殖有生殖能力后代的生物群体,就叫物种。到目前为止,有文字记载的生物种类已超过175万。物种多样性是指地球上动物、植物、微生物等生物种类的丰富程度,是生物多样性的重要体现。\r\n","ratingnum":0,"rating":0,"hits":20,"teachername":"石利","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":5,"nj":null,"ver":"11522","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":518,"createdtime":1478670300,"updatedtime":1496221654},{"id":1871,"catid":"5878,76849,77289,5619,99510,5868,5618","title":"物种多样性的保护","subtitle":"物种多样性的保护","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/6.png","goals":null,"intro":"目前全球大约有11%的鸟类,25%的哺乳动物,34%的鱼类正濒临灭绝。人类无节制排放污染物,过度捕捞,过度放牧,乱砍乱伐等破坏行为导致有些物种濒临灭绝。保护物种多样性,是可持续发展的重要内容,可以维持自然界的生态平衡。","ratingnum":0,"rating":0,"hits":22,"teachername":"石利","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":5,"nj":null,"ver":"11522","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":518,"createdtime":1478670410,"updatedtime":1496221595},{"id":1872,"catid":"5871,5619,76849,99510,5868,5618","title":"常见的无脊椎动物","subtitle":"常见的无脊椎动物","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/6.png","goals":null,"intro":"自然界中的动物大部分属于无脊椎动物。单细胞生物如变形虫,多细胞生物如腔肠生物中的水母等都是无脊椎动物。\r\n","ratingnum":0,"rating":0,"hits":29,"teachername":"石利","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":5,"nj":null,"ver":"11522","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":518,"createdtime":1478670720,"updatedtime":1496221566},{"id":1873,"catid":"5871,5619,76849,99510,5868,5618","title":"常见的脊椎动物","subtitle":"常见的脊椎动物","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/6.png","goals":null,"intro":"脊椎动物是动物界中最高等的动物,根据它们的形态特征不同,可分为鱼类、两栖类、爬行类、鸟类、哺乳类等几大类。\r\n","ratingnum":0,"rating":0,"hits":28,"teachername":"石利","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":5,"nj":null,"ver":"11522","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":518,"createdtime":1478670915,"updatedtime":1496221517},{"id":1874,"catid":"5872,5619,76849,99510,5868,5618","title":"孢子植物","subtitle":"孢子植物","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/6.png","goals":null,"intro":"孢子植物指能产生孢子的植物总称,孢子植物一般喜欢在阴暗潮湿的地方生长。","ratingnum":0,"rating":0,"hits":23,"teachername":"石利","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":5,"nj":null,"ver":"11522","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":518,"createdtime":1478670960,"updatedtime":1496221487},{"id":1876,"catid":"5872,5619,76849,99510,5868,5618","title":"种子植物","subtitle":"种子植物","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/4.png","goals":null,"intro":"能产生种子的植物叫做种子植物,种子植物可分为被子植物和裸子植物。\r\n","ratingnum":0,"rating":0,"hits":26,"teachername":"石利","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":5,"nj":null,"ver":"11522","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":518,"createdtime":1478673772,"updatedtime":1496221462}],"xdxk":{"2648":{"name":"小学数学","xd":1,"xk":3},"467":{"name":"初中数学","xd":2,"xk":3},"215":{"name":"初中英语","xd":2,"xk":4},"394":{"name":"初中科学","xd":2,"xk":5},"226":{"name":"初中物理","xd":2,"xk":6},"534":{"name":"初中化学","xd":2,"xk":7},"660":{"name":"初中历史与社会","xd":2,"xk":20}},"count":"91","catname":{"411":"初中科学","412":"初中科学","2096":"初中科学","418":"初中科学","1870":"初中科学","1871":"初中科学","1872":"初中科学","1873":"初中科学","1874":"初中科学","1876":"初中科学"},"ispay":{"411":0,"412":0,"2096":0,"418":0,"1870":0,"1871":0,"1872":0,"1873":0,"1874":0,"1876":0},"fmtime":{"411":"2017-05-31 17:11","412":"2017-05-31 17:10","2096":"2017-05-31 17:09","418":"2017-05-31 17:08","1870":"2017-05-31 17:07","1871":"2017-05-31 17:06","1872":"2017-05-31 17:06","1873":"2017-05-31 17:05","1874":"2017-05-31 17:04","1876":"2017-05-31 17:04"},"videonum":{"411":1,"412":1,"2096":2,"418":1,"1870":1,"1871":1,"1872":1,"1873":1,"1874":1,"1876":1},"pages":"
","page_items":"\n3/10"}