本文对山西省阳城县1987年的婴儿死亡情况进行了分析。

In this paper, infant mortality in Yangcheng County in Shanxi Province in 1987 was analyzed.

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论述了水资源保护的重要性，分析了阳城县水环境污染状况，并提出了相应的防治对策。

This paper expounds the importance of the protection of the water resources, analyzes on the water pollution situation in Yancheng County, and advances some corresponding preventive countermeasures.

youdao

论述了水资源保护的重要性，分析了阳城县水环境污染状况，并提出了相应的防治对策。

This paper expounds the importance of the protection of the water resources, analyzes on the water pollution situation in Yancheng County, and advances some corresponding preventive countermeasures.

youdao