Second, the current status of research on the creative theory for documentary at home and abroad.

二是国内外对纪录片创作理论的研究现状。

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This text USES some theory researching method, such as logical inference, documentary method and so on to research the cause of difficulties in learning physics and gives teaching countermeasures.

本文利用逻辑推理、文献法等理论研究方法，对高中生学习物理困难的原因及相应教学对策进行了研究。

youdao

This text USES some theory researching method, such as logical inference, documentary method and so on to research the cause of difficulties in learning physics and gives teaching countermeasures.

本文利用逻辑推理、文献法等理论研究方法，对高中生学习物理困难的原因及相应教学对策进行了研究。

youdao