推荐回答（4个）
可以。几乎所有人都是从大三开始准备考研，部分成绩稍好的是大三暑假才开始，因为他们原本指望能保研，看到成绩实在无望了才开始着手准备。结果当年就上了两个，一个被北大电子信息科学与技术专业录取，另一个本校调剂。其余10人全部落榜，且很一致地选择了“二战”，经过一年奋战，10人全部上了国家线，最后有九人被录取，其中两人是调剂录取，没录取的一人是因为不想调剂选择了就业。
为何两次考研结果有如此大的差别，我也跟部分同学聊过，并观察分析了他们两次备考的表现。以第一次就考上的同学为例，考上北大的同学，原本成绩就不怎么样，所以也没作他想，目标就是考研。虽然也是从大三开始备考，但是投入程度完全不一样，他并没有因为本科阶段成绩不好而自暴自弃，而是专注于考研，执行力特别强，从来不为自己找任何借口放松复习。“二战”考研的同学，在经历了一次考试后，总结了经验，也有了相对充分的时间来准备，关键是毕业后，自己没有选择就业，就只能在考研这条路上坚持走下去，再没有理由像第一次备考的时候三心二意，所以在备考的时候，学习的效率完全不可同日而语。
其次考研最大敌人是自己，要充分认识到考研难在复习备考的过程
考研是一项独自完成的系统工程，从考试难度来说，也许比高考低，因为考研的录取率相对不低，竞争的对手相对也少得多；但从备考过程来说，难度绝对要高于高考。因为从信息收集，复习资料准备，备考过程的监督，都需要自己独自完成，没有人能帮助你，而恰恰很多同学自我管理自我监督的能力并不强，又容易过高地估计自己的能力，所以备考过程中非常容易出现松懈或者效率低下的情况。要想提高自己的效率，就不要想着别的退路，也不要给自己找太多借口，暂时放下自己的兴趣爱好，特别是容易让人分心，浪费时间的事情（比如复习时忍不住拿出手机，看见同学在寝室打游戏也忍不住要打几局，看见别人在追电视剧自己也忍不住要看几集，这样一开始就很难抑制自己），一定要坚持自己的复习计划，养成好习惯。如果能有效地熬过备考这段时间，基本就成功了一大半。
复习备考在效率而非时间，但备考时间一年左右为宜
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