我们没有报课,有一个很重要的原因就是,本地根本就开不出这种课程(也好,帮我们省钱了)。
知乎,让每一次点击都充满意义 —— 欢迎来到知乎,发现问题背后的世界。
如第 six 章所述,光诱导的电子转移可以分为两种情况:电子供体的激发和电子受体的激发,表示为 D*+A → D+•+A−• → D+A+hν(D 将激发态电子转移到 A 的 LUMO,接着电子从 A 的 LUMO 回到 D 的基态轨道而发光)和 D+A* —→ D+•+A−• → D+A+hν(A 被激发后,D 将 HOMO 电子转移到 A 的 HOMO 或空穴,接着处于 A 激发态电子跃迁至 D 的 HOMO 而发光)。
当然,类似标准化考试还有雅思、托福等,但从实际情况上来看,绝大部分娃能在小学、中学段参与较多的,还是剑桥等级考试。
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剑桥的官方真题可不便宜,动不动五、六十,七、八十一本,整个几套,再加上点听力、口语、语法、阅读、写作的专项训练,四、五百块到小一千,就花出去了。
欢迎关注@B计划老妈,孩子成长路漫漫,在这不可逆的十八年里,努力扶君上马,送君一程,但内心始终有B计划。
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所以你看,北上广深及省会城市、教育发达城市的家长,几乎从来不问要不要考,他们只关心自家的最佳考试路径、最佳的学习方法和资源以及在此基础上的性价比之选。
一夜之间,你的“竞争对手”或是“参照对象”,就跳出了本市、本省等熟悉的范畴,你就能和北上广深、港澳、日韩、东南亚、欧洲那些英语非母语的孩子,共同在这门外语学习上,进行横向、客观的比较。
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最后,看的都是自家具体又合乎实际的规划。毕竟哪一条路,都要花钱、花时间。
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