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众所周知,在平时的教学中,一点“意外”都没有的课堂是不真实的,没有预设的课堂是不负责任的,没有生成的课堂是不精彩的。只有在课前进
As we all know, in normal teaching, a little “accidental” classroom is not true, no default classroom is irresponsible, did not generate the classroom is not exciting. Only advanced in class