Self-study's research content is very widespread, any question, interests, difficult position, challenge and so on which produces in the teaching practice all may become its research object.

自我研究的研究内容很广泛，任何在教学实践中产生的问题、兴趣、困境、挑战等都可以成为其研究的对象。

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The research object is 31 3 days after the birth of the baby, scientists did not use any artificial ways to influence the growth of the baby, just a regular delta volume of their height.

研完对象是31名出生后3天的婴儿。朴学家并没有采用任何人为的方法去影响婴儿的生长。只是定期浏全他们的舟高。

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