邀你一起来创新：中国大智汇全球创新研究大挑战优秀课题集-畅读网

　　　　

邀你一起来创新：中国大智汇全球创新研究大挑战优秀课题集

作者：秦春华

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内容简介:

赛的研究主题涵盖了人类社会关心的各种有趣问题，全国上百所重点中学的优秀学生积极参与，组成团队参加比赛。他们的研究历程、教练老师的指导心得独具特色。为在全国范围内展示和分享中学创新教育成果，哈佛北大CTB（中国大智汇）联合全国30所重点中学，基于历届CTB中国大智汇比赛中学生展开的研究成果，编写了此书。目的在于展示学生创新学习、分享课题指导老师教学心得、传递中学教育者办学理念。

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SHOW FULL COLUMNS FROM `ls_nav` [ RunTime:0.025328s ]
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SHOW FULL COLUMNS FROM `ls_friendly_link` [ RunTime:0.002956s ]
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SHOW FULL COLUMNS FROM `ls_goods` [ RunTime:0.003080s ]
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SHOW FULL COLUMNS FROM `ls_ad` [ RunTime:0.003309s ]
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SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 2 LIMIT 1 [ RunTime:0.004599s ]
SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 32 LIMIT 1 [ RunTime:0.008476s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 11 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.004118s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 14 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.000831s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1757630685 ORDER BY `create_time` DESC LIMIT 5 [ RunTime:1.059443s ]

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