And analyze some types of grade eight physics original teaching material about different time, dig out the main science methods, and carry on comparison, for the purpose of reference.

对不同时期几种八年级物理原始教材进行分析，挖掘出其中的主要科学方法，对其进行比较，以供参考。

youdao

And analyze some types of grade eight physics original teaching material about different time, dig out the main science methods, and carry on comparison, for the purpose of reference.

对不同时期几种八年级物理原始教材进行分析，挖掘出其中的主要科学方法，对其进行比较，以供参考。

youdao