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目前,对教材的使用存在两种极端。一种是大刀阔斧的改。上课时,尤其是在上公开课的时候,往往抛开教材提供的例题和练习的内容,自己再重新进行设计;
At present, there are two extremes in the use of textbooks. One is a drastic change. When class, especially in the open class, often put aside the examples and exercises provided by the textbook content, and then re-design;