背词达人 vs PhD Challenge

背词达人，一款口碑甚好，大家爱不释手的背单词App。 【深受用户和专业同行信任和喜爱】 - 全应用商店累计超过 千万下载总量； - Appstore 11国家新品推荐获得者； - 星光创意奖、极光奖、金米将、至美奖、应用时刻奖、魅斯卡奖、豌豆荚设计奖获得者； - 官方考研用户热推的背单词App - 教育类赢得巨量好评的产品之一 - 获得多个应用商店的官方专题推荐 - 爱范儿、少数派、最美应用、小众软件等权威媒体推荐 【游戏化背词 - 记得欢】忘掉那些枯燥乏味的死记硬背吧，基于番茄在工作法，一边专注背词一边玩“种树的养成游戏”，还有大脑训练(提升记忆力的英语小游戏)，英语界的“脱口秀”等、玩儿着玩儿着就学会了。 【海量词书 - 记得全】 • 覆盖各学段英语水平和学习需求 • 真题词库+真题考频支持，为你背词路上保驾护航 • 海量词书握在手：小学/初中/高中/四级/六级/考研/托福/雅思...权威词库等你挑选，让学习更舒心 【详解单词 - 记得准】 • 词根词缀、派生、真题词组、形近词、真题例句一次全部搞定 • 拥有海量单词助记库，上千万学员有趣的助记分享，谐音、串记等应有尽有 • 基于 10多亿条用户记忆行为数据，结合你的学习情况，个性化定制遗忘曲线，安排学习，在记忆临界点提醒复习 【复习利器 - 记得牢】 • 英文选意、中文选词，互译记忆效果佳 • 全拼、组合、填写拼写，每个单词混瓜烂熟 • 单词速听、随身听，听说读写一把抓 ------联系我们------ 如在使用过程中遇到任何问题，请联系我们： -在线帮助：进入设置->反馈与帮助->联系客服 -背词达人官方微博：@背词达人App http://weibo.cn/beicidare - 背词达人官方邮箱：beicidaren@163.com --------------------------------------------------------------------- ------------------------------- ----------- [背词达人订阅说明] 1 背词达人会员服务有以下三种订购类型： 22元/1个月； 48元/永久会员（限时活动价格）； 98元/12个月 以上所有订阅为避免部分用户忘记关闭自动续费造成不必要的花费，我们没有设置自动续费功能，到期后不会自动扣费。 2 订购以上背词达人会员服务会通过iTunes 账户直接支付。 3 服务协议：http://html.jisuxinghe.com/view/beici/user_service.html 4 隐私协议：http://html.jisuxinghe.com/view/beici/privacy_policy.html

PhD Challenge is a quiz game that takes you from elementary school all the way to a PhD. · 18 academic levels — Elementary, Middle School, High School, Undergraduate, Master's, and PhD — unlocked one by one · 6 graduation diplomas — 6th grade, 9th grade, 12th grade, senior year, Master's, and PhD. Pass each graduation exam to add the diploma to your Certificate Wall · Ability profile — see how you score across logical reasoning, data analysis, natural science, general knowledge and more, with an instant post-exam ability chart · Real exam conditions — each question has its own countdown (45–90 seconds); answers lock on submit and show an explanation, you can't go back, and the timer keeps running in the background · Fair retake system — 5 free attempts per level; once they're used, complete 8 hours of self-study to earn one free retake · Retake tickets — don't want to wait? Buy retake tickets for an instant retry, or get unlimited retakes forever · Stratified random questions — every exam draws a different mix, so memorizing answers won't get you through · Five languages: Simplified Chinese, Traditional Chinese, English, Japanese, and Korean · Fully playable offline; your progress is saved automatically on your device Are you really at an elementary level — or can you go all the way to a PhD? Start your academic journey now.