Variable-controlling approach is expounded and how to apply this approach in solving difficulties in geography teaching is indicated.
对控制变量法进行了阐述，并指出了如何运用该方法解决地理教学中的难点问题。
In line with current teaching practices, the new edition takes a more problem-based approach with emphasis on managing disease rather than treating it as an example of real problem solving.
与当今的教导惯例一致，重点在管理疾病而不是把它当作一真正问题的例子解决新版花费一更多问题基于来临。
In line with current teaching practices, the new edition takes a more problem-based approach with emphasis on managing disease rather than treating it as an example of real problem solving.
与当今的教导惯例一致，重点在管理疾病而不是把它当作一真正问题的例子解决新版花费一更多问题基于来临。
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