• 为学员从9年级到研究生的权威全程国际竞赛方案
  • 以业内领先的师资和优异的服务,获得了大量学员家长的鼎力支持
  • 西安翰林网校在读新增学员的增长速度已经年均超过650

400-888-4011

Alevel物理高效备考四大核心策略深度解析

来源:西安翰林网校 时间:04-04

Alevel物理高效备考四大核心策略深度解析

Alevel物理高效备考四大核心策略深度解析

一、结构化复习:从被动输入到主动输出的习惯养成

Alevel物理知识体系庞大且逻辑关联紧密,单纯完成知识点覆盖仅是基础,关键在于建立可持续的复习机制。许多考生在备考中期容易陷入"学过就忘"的困境,根源往往在于缺乏规律性的输出训练。建议每日固定1-1.5小时进行"闭环式复习"——上午完成新知识点学习后,下午用30分钟复述核心概念并绘制知识框架图;晚间则通过20道针对性习题检验掌握程度,重点标注错题涉及的薄弱环节。

这种分时段、多形式的复习模式,既能避免长时间学习导致的效率下降,又能通过"输入-整理-输出"的循环强化记忆。例如力学模块中,可将牛顿定律、动量守恒、能量守恒三大核心内容制作成对比表格,标注适用条件与典型例题,每天抽5分钟快速浏览,持续两周后会明显感受到知识联结的流畅性提升。

需要特别注意的是,复习习惯的养成需经历21天的适应期。初期可借助手机闹钟设置复习提醒,将"必须完成"的任务细化为具体动作(如"19:00-19:20完成3道动量题并整理错因"),逐步从外部约束过渡到内在驱动。

二、基础攻坚:从"会做"到"做对"的能力进阶

Alevel物理考试中,70%的失分源于基础题的失误。这并非知识点掌握不足,而是对"基础"的理解存在偏差——真正的基础不仅是记住公式,更包括对公式适用条件的精准把握、单位换算的熟练操作以及审题时的细节捕捉。以运动学中的匀变速直线运动为例,考生常因忽略"初速度是否为零""加速度方向是否与速度方向一致"等条件导致错误。

建议建立"基础错题档案",按模块分类记录典型失误。例如电磁学部分,可将"左右手定则混淆""磁通量变化计算遗漏面积变化"等高频错误单独整理,每道错题旁标注"易错点""正确逻辑""验证方法"三栏。每周选取3道错题进行重做,重点观察是否仍在同一位置犯错,连续三次正确后可标记为"已攻克"。

针对基础题型的训练,推荐采用"三轮刷题法":轮不限时完成,重点关注解题思路;第二轮限时(按考试标准时间的80%),强化速度与准确率;第三轮只做错题,分析错误类型。通过这种递进式训练,多数考生的基础题得分率可从65%提升至85%以上。

三、实验突破:从"怕做"到"会设计"的思维升级

Alevel物理实验部分常被视为"最难啃的骨头",实则存在清晰的解题逻辑。所有实验设计的核心是"目的导向"——明确实验要验证什么规律、测量什么物理量,就能倒推出所需器材、步骤设计及数据处理方法。例如验证胡克定律的实验,目的是探究弹簧弹力与形变量的关系,由此可确定需要弹簧、钩码、刻度尺等器材,步骤需包括多次改变钩码数量并记录形变量,数据处理则需绘制F-x图像并计算斜率。

备考时可将实验分为"测量型""验证型""探究型"三类,分别总结解题模板。测量型实验(如测量电阻率)重点关注误差来源分析(系统误差/偶然误差);验证型实验(如验证动量守恒)需强调条件控制(如水平光滑轨道);探究型实验(如探究影响电阻的因素)则要突出变量控制法的应用。

建议结合教材中的实验案例,尝试"改编实验"——改变实验目的或器材,重新设计步骤。例如将"测量电源电动势和内阻"的实验器材中的电流表换成电阻箱,思考如何调整测量方法。这种变式训练能有效提升实验思维的灵活性,考试中遇到新实验时也能快速找到切入点。

四、考纲活用:从"覆盖知识"到"精准提分"的策略优化

Alevel物理考纲是最核心的备考指南,但许多考生仅将其视为知识点列表,忽略了其中隐含的"重点提示"。例如考纲中"理解""应用""分析"等行为动词的不同,对应着不同的考查深度——"应用"级知识点(如用牛顿定律解决连接体问题)通常是大题的命题重点,"分析"级知识点(如电路故障分析)则更易出现在综合题中。

建议将考纲与教材目录对照,用不同颜色标注"高频考点""低频考点""新增考点"。以近年考试趋势来看,热学中的理想气体状态方程、近代物理中的光电效应等内容考查频率较高,需重点投入时间;而部分过于理论化的知识点(如某些物理学史内容)则可适当简化复习。

另外,考纲中的"示例题"具有重要参考价值。通过分析示例题的题型、设问方式及评分标准,可总结出"踩分点"规律。例如计算题中,即使最终答案错误,正确写出原始公式、代入过程也能获得部分分数。备考时应有意识地规范答题步骤,确保"会的题拿满分,半会的题拿部分分"。

Alevel物理备考本质上是知识积累与方法优化的双重过程。无论是习惯养成、基础巩固,还是实验突破、考纲应用,关键在于将"被动学习"转化为"主动思考"。通过系统化的策略执行与持续的自我检测,考生不仅能提升物理成绩,更能培养受益终身的科学思维能力。

校区导航
基本 文件 流程 错误 SQL 调试
  1. 请求信息 : 2026-04-03 23:25:08 HTTP/1.1 GET : http://www.aabqt.com/s/3415/n/20966.html
  2. 运行时间 : 0.032288s [ 吞吐率:30.97req/s ] 内存消耗:391.23kb 文件加载:137
  3. 缓存信息 : 0 reads,0 writes
  1. /data/web/baijiao_branch_collect/public/index.php ( 0.79 KB )
  2. /data/web/baijiao_branch_collect/vendor/autoload.php ( 0.75 KB )
  3. /data/web/baijiao_branch_collect/vendor/composer/autoload_real.php ( 1.63 KB )
  4. /data/web/baijiao_branch_collect/vendor/composer/platform_check.php ( 0.90 KB )
  5. /data/web/baijiao_branch_collect/vendor/composer/ClassLoader.php ( 15.99 KB )
  6. /data/web/baijiao_branch_collect/vendor/composer/autoload_static.php ( 4.26 KB )
  7. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/helper.php ( 8.34 KB )
  8. /data/web/baijiao_branch_collect/vendor/topthink/think-validate/src/helper.php ( 2.19 KB )
  9. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/helper.php ( 1.47 KB )
  10. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/stubs/load_stubs.php ( 0.16 KB )
  11. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Exception.php ( 1.69 KB )
  12. /data/web/baijiao_branch_collect/vendor/topthink/think-container/src/Facade.php ( 2.71 KB )
  13. /data/web/baijiao_branch_collect/vendor/symfony/deprecation-contracts/function.php ( 0.99 KB )
  14. /data/web/baijiao_branch_collect/vendor/symfony/polyfill-mbstring/bootstrap.php ( 8.26 KB )
  15. /data/web/baijiao_branch_collect/vendor/symfony/polyfill-mbstring/bootstrap80.php ( 9.78 KB )
  16. /data/web/baijiao_branch_collect/vendor/symfony/var-dumper/Resources/functions/dump.php ( 1.49 KB )
  17. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/App.php ( 15.30 KB )
  18. /data/web/baijiao_branch_collect/vendor/topthink/think-container/src/Container.php ( 15.76 KB )
  19. /data/web/baijiao_branch_collect/vendor/psr/container/src/ContainerInterface.php ( 1.02 KB )
  20. /data/web/baijiao_branch_collect/app/provider.php ( 0.19 KB )
  21. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Http.php ( 6.04 KB )
  22. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/helper/Str.php ( 7.29 KB )
  23. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Env.php ( 4.68 KB )
  24. /data/web/baijiao_branch_collect/app/common.php ( 10.83 KB )
  25. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/helper.php ( 18.78 KB )
  26. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Config.php ( 5.54 KB )
  27. /data/web/baijiao_branch_collect/config/app.php ( 1.29 KB )
  28. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Env.php ( 1.67 KB )
  29. /data/web/baijiao_branch_collect/config/cache.php ( 1.22 KB )
  30. /data/web/baijiao_branch_collect/config/config.php ( 0.26 KB )
  31. /data/web/baijiao_branch_collect/config/console.php ( 0.29 KB )
  32. /data/web/baijiao_branch_collect/config/cookie.php ( 0.56 KB )
  33. /data/web/baijiao_branch_collect/config/database.php ( 2.29 KB )
  34. /data/web/baijiao_branch_collect/config/filesystem.php ( 0.63 KB )
  35. /data/web/baijiao_branch_collect/config/lang.php ( 0.81 KB )
  36. /data/web/baijiao_branch_collect/config/log.php ( 1.37 KB )
  37. /data/web/baijiao_branch_collect/config/middleware.php ( 0.19 KB )
  38. /data/web/baijiao_branch_collect/config/route.php ( 1.54 KB )
  39. /data/web/baijiao_branch_collect/config/session.php ( 0.57 KB )
  40. /data/web/baijiao_branch_collect/config/trace.php ( 0.34 KB )
  41. /data/web/baijiao_branch_collect/config/view.php ( 0.81 KB )
  42. /data/web/baijiao_branch_collect/app/event.php ( 0.25 KB )
  43. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Event.php ( 7.67 KB )
  44. /data/web/baijiao_branch_collect/app/service.php ( 0.13 KB )
  45. /data/web/baijiao_branch_collect/app/AppService.php ( 0.26 KB )
  46. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Service.php ( 1.64 KB )
  47. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Lang.php ( 7.35 KB )
  48. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/lang/zh-cn.php ( 13.70 KB )
  49. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/initializer/Error.php ( 3.31 KB )
  50. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/initializer/RegisterService.php ( 1.33 KB )
  51. /data/web/baijiao_branch_collect/vendor/services.php ( 0.14 KB )
  52. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/service/PaginatorService.php ( 1.52 KB )
  53. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/service/ValidateService.php ( 0.99 KB )
  54. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/service/ModelService.php ( 2.04 KB )
  55. /data/web/baijiao_branch_collect/vendor/topthink/think-trace/src/Service.php ( 0.77 KB )
  56. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Middleware.php ( 6.72 KB )
  57. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/initializer/BootService.php ( 0.77 KB )
  58. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/Paginator.php ( 11.86 KB )
  59. /data/web/baijiao_branch_collect/vendor/topthink/think-validate/src/Validate.php ( 63.20 KB )
  60. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/Model.php ( 23.55 KB )
  61. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/Attribute.php ( 21.05 KB )
  62. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/AutoWriteData.php ( 4.20 KB )
  63. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/Conversion.php ( 6.75 KB )
  64. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/DbConnect.php ( 5.16 KB )
  65. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/ModelEvent.php ( 2.33 KB )
  66. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/RelationShip.php ( 28.30 KB )
  67. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/contract/Arrayable.php ( 0.09 KB )
  68. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/contract/Jsonable.php ( 0.13 KB )
  69. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/contract/Modelable.php ( 0.09 KB )
  70. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Db.php ( 2.88 KB )
  71. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/DbManager.php ( 8.52 KB )
  72. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Log.php ( 6.28 KB )
  73. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Manager.php ( 3.92 KB )
  74. /data/web/baijiao_branch_collect/vendor/psr/log/src/LoggerTrait.php ( 2.69 KB )
  75. /data/web/baijiao_branch_collect/vendor/psr/log/src/LoggerInterface.php ( 2.71 KB )
  76. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Cache.php ( 4.92 KB )
  77. /data/web/baijiao_branch_collect/vendor/psr/simple-cache/src/CacheInterface.php ( 4.71 KB )
  78. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/helper/Arr.php ( 17.45 KB )
  79. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/cache/driver/Redis.php ( 6.94 KB )
  80. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/cache/Driver.php ( 9.03 KB )
  81. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/contract/CacheHandlerInterface.php ( 1.99 KB )
  82. /data/web/baijiao_branch_collect/app/Request.php ( 0.09 KB )
  83. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Request.php ( 55.78 KB )
  84. /data/web/baijiao_branch_collect/app/middleware.php ( 0.26 KB )
  85. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Pipeline.php ( 2.61 KB )
  86. /data/web/baijiao_branch_collect/vendor/topthink/think-trace/src/TraceDebug.php ( 3.40 KB )
  87. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Route.php ( 23.73 KB )
  88. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/RuleName.php ( 5.75 KB )
  89. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/Domain.php ( 2.53 KB )
  90. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/RuleGroup.php ( 22.43 KB )
  91. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/Rule.php ( 26.95 KB )
  92. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/RuleItem.php ( 9.78 KB )
  93. /data/web/baijiao_branch_collect/route/app.php ( 3.05 KB )
  94. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Route.php ( 4.70 KB )
  95. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/dispatch/Controller.php ( 4.74 KB )
  96. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/Dispatch.php ( 10.44 KB )
  97. /data/web/baijiao_branch_collect/app/controller/Index.php ( 33.26 KB )
  98. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Request.php ( 9.20 KB )
  99. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/Url.php ( 14.07 KB )
  100. /data/web/baijiao_branch_collect/app/model/IndexModel.php ( 19.95 KB )
  101. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Config.php ( 1.37 KB )
  102. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Cache.php ( 2.06 KB )
  103. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/facade/Db.php ( 0.93 KB )
  104. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/connector/Mysql.php ( 5.73 KB )
  105. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/PDOConnection.php ( 53.74 KB )
  106. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/Connection.php ( 8.39 KB )
  107. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/ConnectionInterface.php ( 4.57 KB )
  108. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/builder/Mysql.php ( 16.58 KB )
  109. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/Builder.php ( 24.07 KB )
  110. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/BaseBuilder.php ( 27.50 KB )
  111. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/Query.php ( 15.97 KB )
  112. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/BaseQuery.php ( 45.13 KB )
  113. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/TimeFieldQuery.php ( 7.43 KB )
  114. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/AggregateQuery.php ( 3.26 KB )
  115. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/ModelRelationQuery.php ( 20.07 KB )
  116. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/ParamsBind.php ( 3.66 KB )
  117. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/ResultOperation.php ( 7.01 KB )
  118. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/WhereQuery.php ( 19.37 KB )
  119. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/JoinAndViewQuery.php ( 7.11 KB )
  120. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/TableFieldInfo.php ( 2.63 KB )
  121. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/Transaction.php ( 2.77 KB )
  122. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/log/driver/File.php ( 5.96 KB )
  123. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/contract/LogHandlerInterface.php ( 0.86 KB )
  124. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/log/Channel.php ( 3.89 KB )
  125. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/event/LogRecord.php ( 1.02 KB )
  126. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/Collection.php ( 16.47 KB )
  127. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Response.php ( 8.81 KB )
  128. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/response/View.php ( 3.29 KB )
  129. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Cookie.php ( 6.06 KB )
  130. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/View.php ( 4.39 KB )
  131. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/view/driver/Php.php ( 6.44 KB )
  132. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/contract/TemplateHandlerInterface.php ( 1.60 KB )
  133. /data/web/baijiao_branch_collect/view/index/pc/school_news_details.php ( 2.39 KB )
  134. /data/web/baijiao_branch_collect/view/index/pc/school_top.php ( 5.76 KB )
  135. /data/web/baijiao_branch_collect/view/index/pc/school_right.php ( 2.17 KB )
  136. /data/web/baijiao_branch_collect/view/index/pc/school_bottom.php ( 1.16 KB )
  137. /data/web/baijiao_branch_collect/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000437s ] mysql:host=127.0.0.1;port=3306;dbname=baijiao_branch_collect;charset=utf8
  2. SHOW FULL COLUMNS FROM `fqi_school` [ RunTime:0.001425s ]
  3. SELECT * FROM `fqi_school` WHERE `school_id` = '3415' AND `site_id` = 16 AND `school_status` = 1 LIMIT 1 [ RunTime:0.001173s ]
  4. SHOW FULL COLUMNS FROM `fqi_school_class` [ RunTime:0.001356s ]
  5. SELECT * FROM `fqi_school_class` WHERE `school_id` = 3415 [ RunTime:0.001309s ]
  6. SHOW FULL COLUMNS FROM `fqi_school_campus` [ RunTime:0.002933s ]
  7. SELECT * FROM `fqi_school_campus` WHERE `school_id` = 3415 [ RunTime:0.000288s ]
  8. SHOW FULL COLUMNS FROM `fqi_school_news` [ RunTime:0.000929s ]
  9. SELECT `a`.*,`content` FROM `fqi_school_news` `a` LEFT JOIN `fqi_school_news_content` `b` ON `b`.`content_id`=`a`.`content_id` WHERE `school_id` = 3415 AND `a`.`content_id` = '20966' AND `news_status` = 1 AND `school_status` = 1 LIMIT 1 [ RunTime:0.000521s ]
  10. (select content_id,news_name,school_id from fqi_school_news where school_id = '3415' and content_id < '20966' and site_id <= '16' order by content_id desc limit 1) union all(select content_id,news_name,school_id from fqi_school_news where school_id = '3415' and content_id > '20966' and site_id <= '16' order by content_id asc limit 1) [ RunTime:0.000725s ]
  11. SHOW FULL COLUMNS FROM `fqi_school_course` [ RunTime:0.002747s ]
  12. SELECT * FROM `fqi_school_course` WHERE `school_id` = 3415 AND `site_id` = 16 AND `course_status` = 1 AND `school_status` = 1 ORDER BY `course_id` DESC LIMIT 4 [ RunTime:0.000774s ]
  13. SELECT * FROM `fqi_school_course` WHERE `school_id` = 3415 AND `school_status` = 1 AND `course_status` = 1 ORDER BY `course_id` DESC LIMIT 8 [ RunTime:0.000450s ]
  14. SELECT * FROM `fqi_school_news` WHERE `school_id` = 3415 ORDER BY `click` DESC,`news_id` DESC LIMIT 5 [ RunTime:0.000226s ]
  15. SELECT `content_id`,`news_name`,`a`.`school_id`,`b`.`school_name` FROM `fqi_school_news` `a` LEFT JOIN `fqi_school` `b` ON `b`.`school_id`=`a`.`school_id` WHERE `a`.`site_id` = '16' AND `b`.`school_status` = '1' AND `news_status` = 1 AND `content_id` < 20966 ORDER BY `content_id` DESC LIMIT 20 [ RunTime:0.010023s ]
0.033238s