{"show":[{"id":1920,"catid":"5769","title":"无氧呼吸","subtitle":"无氧呼吸","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/5.png","goals":null,"intro":"细胞在没有氧的参与下,通过酶的催化作用,把葡萄糖等有机物分解为不彻底的氧化产物(如酒精、乳酸等),同时释放出少量能量的过程,就是无氧呼吸。\r\n","ratingnum":0,"rating":0,"hits":17,"teachername":"屈泽兵","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":1480907976,"updatedtime":1496218116},{"id":1921,"catid":"5769","title":"多样的呼吸器官","subtitle":"多样的呼吸器官","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/2.png","goals":null,"intro":"动物靠食物和氧气维持生命,不同的环境中生活的动物,获得氧气的方式也不同,呼吸器官也不同。例如,蚯蚓用皮肤进行呼吸。","ratingnum":0,"rating":0,"hits":17,"teachername":"于蘋蘋","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":1480907995,"updatedtime":1496218092},{"id":1951,"catid":"6040,5766","title":"营养素的作用","subtitle":"营养素的作用","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/6.png","goals":null,"intro":"各种营养素具有不同的作用,食物中的营养素除了能提供能量外,还能为我们提供生长发育和修复受损组织等生理活动所必需的物质。","ratingnum":0,"rating":0,"hits":13,"teachername":"于蘋蘋","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":1480917969,"updatedtime":1496213173},{"id":1952,"catid":"5766,44585,6040","title":"平衡膳食","subtitle":"平衡膳食","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/1.png","goals":null,"intro":"健康的饮食要求食物种类尽量多些、数量适当、营养物质之间的比例合理,并且与身体消耗的营养物质保持相对平衡,即所谓平衡膳食。","ratingnum":0,"rating":0,"hits":15,"teachername":"于蘋蘋","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":1480918695,"updatedtime":1496213133},{"id":1954,"catid":"5766,44514,44581","title":"食物与能量","subtitle":"食物与能量","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/3.png","goals":null,"intro":"食物中的糖类、脂肪和蛋白质等有机物能为人体提供能量。","ratingnum":0,"rating":0,"hits":15,"teachername":"于蘋蘋","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":1480918732,"updatedtime":1496212725},{"id":2611,"catid":"98623","title":"材料与人类社会发展","subtitle":"材料与人类社会发展","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/4.png","goals":null,"intro":"材料是人类用于制造物品、器件、构件、机器或其他产品的那些物质。材料是物质,但不是所有物质都可以称为材料。","ratingnum":0,"rating":0,"hits":11,"teachername":"徐慧君","publisheruid":0,"uid":81,"xd":2,"deletedtime":null,"xk":5,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":null,"admin":518,"createdtime":1493947108,"updatedtime":1496210160},{"id":2557,"catid":"98623,44350","title":"新型材料","subtitle":"新型材料","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/3.png","goals":null,"intro":"新材料是指新出现的或正在发展中的,具有传统材料所不具备的优异性能和特殊功能的材料。","ratingnum":0,"rating":0,"hits":10,"teachername":"张思颖","publisheruid":0,"uid":81,"xd":2,"deletedtime":null,"xk":5,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":null,"admin":518,"createdtime":1492674505,"updatedtime":1496210124},{"id":457,"catid":"98619,100270","title":"金属的冶炼","subtitle":"金属的冶炼","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/4.png","goals":null,"intro":"金属的冶炼是指把金属从化合态变为游离态的过程。冶炼的原理:还原法、置换法、火法冶炼等。","ratingnum":0,"rating":0,"hits":16,"teachername":"张思颖","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":5,"nj":null,"ver":"11518","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":518,"createdtime":1476933604,"updatedtime":1496209870},{"id":2015,"catid":"98614,44541,100267","title":"碱的物理性质及用途","subtitle":"碱的物理性质及用途","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/6.png","goals":null,"intro":"本节主要介绍常见的碱氢氧化钠和氢氧化钙它们的物理性质及用途。","ratingnum":0,"rating":0,"hits":16,"teachername":"张思颖","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":1480987111,"updatedtime":1496209813},{"id":2612,"catid":"98616,100271","title":"盐的性质及用途","subtitle":"盐的性质及用途","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/scientific/3.png","goals":null,"intro":"常见的盐大多数为白色固体,其水溶液一般为无色,但是有些盐有颜色,其水溶液也有颜色。","ratingnum":0,"rating":0,"hits":18,"teachername":"徐慧君","publisheruid":0,"uid":81,"xd":2,"deletedtime":null,"xk":5,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":null,"admin":518,"createdtime":1493947186,"updatedtime":1496209781}],"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":"52","catname":{"1920":"初中科学","1921":"初中科学","1951":"初中科学","1952":"初中科学","1954":"初中科学","2611":"初中科学","2557":"初中科学","457":"初中科学","2015":"初中科学","2612":"初中科学"},"ispay":{"1920":0,"1921":0,"1951":0,"1952":0,"1954":0,"2611":0,"2557":0,"457":0,"2015":0,"2612":0},"fmtime":{"1920":"2017-05-31 16:08","1921":"2017-05-31 16:08","1951":"2017-05-31 14:46","1952":"2017-05-31 14:45","1954":"2017-05-31 14:38","2611":"2017-05-31 13:56","2557":"2017-05-31 13:55","457":"2017-05-31 13:51","2015":"2017-05-31 13:50","2612":"2017-05-31 13:49"},"videonum":{"1920":1,"1921":1,"1951":1,"1952":1,"1954":1,"2611":1,"2557":1,"457":1,"2015":1,"2612":1},"pages":"
","page_items":"\n2/6"}