400-060-0103

GMAT数学DS题: 4个复杂题型简化思路的方法

来源:北京绩迈教育 时间:07-21

GMAT数学DS题: 4个复杂题型简化思路的方法

GMAT数学中,DS题对考生的思维能力提出了更高的要求,并涉及一些逻辑推理。尽管许多考生可以确保DS解决问题的正确率,但在时间消耗方面通常难以达到标准。以下小编将分享一些有效解决问题的技巧。 GMAT数学DS题选项提前背 做过DS问题的考生知道,DS题的答案选项总是按固定顺序排列的五个: (1). 条件A单独充分,条件B单独不充分。 (2). 条件B单独充分,条件A单独不充分。 (3). 条件A和条件B一起充分,单独都不充分。 (4). 条件A和条件B分别单独充分。 (5). 条件A和条件B一起都不充分。 由于答案是固定的,考生可以完全背诵所有五个选项,而不必在考试期间浪费时间阅读,这将节省更多的答题时间。 善用排除法 对于GMAT问题解答题来说,即使你可以排除五种答案中的一种,考生仍然需要从剩下的四种选择中选择一种,而排除本身并不那么重要。DS题是完全不同的,一个答案的排除往往意味着同时剔除几个相关的答案,大大减少选择的可选项,提高选择的命中率。 具体而言: 情况(1):条件1单独充分,条件2未知。可排除BCE 可能选项只剩AD 情况(2):条件1单独不充分,条件2未知。可排除AD 可能选项只剩BCE 情况(3):条件1未知,条件2单独充分。可排除ACE 可能选项只剩BD 情况(4):条件1未知,条件2单独不充分。可排除BD 可能选项只剩ACE 这四种场景中的每一种都意味着大量的排除,立即缩小了选择的范围。因此,排除法是解决充分数据问题的一种非常有效和实用的问题解决方法。 杜绝过量计算 数据充分题和其他数学题之间的大区别在于它不寻求精细的特点。 DS题从未要求考生进行非常具体的计算,但往往需要判断结果或广泛的理解范围,以确认单独或组合的条件是否正确。因此,考生在解决问题时通常不需要做太多具体的计算工作。 而且只需要根据给定的条件判断一下即可得出结论。如果您发现自己计算了大量数据,那么您的解决问题的想法可能已经存在问题。 灵活练习思考 考生在做DS题时经常犯的错误之一是直接把两个条件放在一起,或者不自觉地使用一个条件,同时用一个条件代替另一个条件。因此,面对这样的问题,考生必须注意,学会并习惯于分别思考情况,纠正做题的思考方式。 以上这些要素,大家如果熟悉和掌握,应该有助于解决DS题。希望大家能仔细参考本文的内容,后在DS和整个GMAT考试中发挥好。

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  1. 请求信息 : 2026-04-28 05:49:21 HTTP/1.1 GET : http://www.eduml.com/s/16112/n/122632.html
  2. 运行时间 : 0.017617s [ 吞吐率:56.76req/s ] 内存消耗:367.59kb 文件加载:137
  3. 缓存信息 : 0 reads,0 writes
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  1. CONNECT:[ UseTime:0.000368s ] mysql:host=127.0.0.1;port=3306;dbname=baijiao_branch_collect;charset=utf8
  2. SHOW FULL COLUMNS FROM `fqi_school` [ RunTime:0.001010s ]
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  4. SHOW FULL COLUMNS FROM `fqi_school_class` [ RunTime:0.000592s ]
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  6. SHOW FULL COLUMNS FROM `fqi_school_campus` [ RunTime:0.000605s ]
  7. SELECT * FROM `fqi_school_campus` WHERE `school_id` = 16112 [ RunTime:0.000210s ]
  8. SHOW FULL COLUMNS FROM `fqi_school_news` [ RunTime:0.000657s ]
  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` = 16112 AND `a`.`content_id` = '122632' AND `news_status` = 1 AND `school_status` = 1 LIMIT 1 [ RunTime:0.000237s ]
  10. (select content_id,news_name,school_id from fqi_school_news where school_id = '16112' and content_id < '122632' and site_id <= '7' order by content_id desc limit 1) union all(select content_id,news_name,school_id from fqi_school_news where school_id = '16112' and content_id > '122632' and site_id <= '7' order by content_id asc limit 1) [ RunTime:0.000355s ]
  11. SHOW FULL COLUMNS FROM `fqi_school_course` [ RunTime:0.000687s ]
  12. SELECT * FROM `fqi_school_course` WHERE `school_id` = 16112 AND `site_id` = 7 AND `course_status` = 1 AND `school_status` = 1 ORDER BY `course_id` DESC LIMIT 4 [ RunTime:0.000281s ]
  13. SELECT * FROM `fqi_school_course` WHERE `school_id` = 16112 AND `school_status` = 1 AND `course_status` = 1 ORDER BY `course_id` DESC LIMIT 8 [ RunTime:0.000173s ]
  14. SELECT * FROM `fqi_school_news` WHERE `school_id` = 16112 ORDER BY `click` DESC,`news_id` DESC LIMIT 5 [ RunTime:0.000187s ]
  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` = '7' AND `b`.`school_status` = '1' AND `news_status` = 1 AND `content_id` < 122632 ORDER BY `content_id` DESC LIMIT 20 [ RunTime:0.008263s ]
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