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对一段课堂教学实录中得出液化放热的结论提出疑问,通过一道中考试题来释疑,进而培养学生对实验方案的评价能力。
Questioning the conclusion that a liquefaction exotherm can be drawn from a class teaching record, through a test question to explain the suspicion, and then cultivate students’ ability to evaluate the experimental program.