Objective To investigate the risk factors of abnormal intrapartum fetal heart rate(FHR) tracing , increase the prepotency rate.

目的探讨产时胎心常的影响因素,提高优生优育率。

The paper analyses the Heilongjiang's comparative prepotency, and propose the suggestion to government and enterprise on organic food exploit.

本文析了黑龙江省的比较优势,在绿色食方面为企业和政府提出了建议。