目的分析结肠黑变病的病因、镜下表现及防治措施。
Objective To analyze the pathogenesis endoscopic characteristic prevention and cure measures for melanosis coli.
引言，简述了黑社会性质组织犯罪的危害性及我国在“反黑”立法上的不足，并尝试提出相应的防治对策。
Introduction: in this part, the author discusses briefly the harm of mafia-style organization and the defects of our current legislation against the crimes of mafia-style organization.
对田间播种时使用4种杀菌剂防治油菜黑胫病的效果研究。
Summary. The effects of 4 fungicides applied at sowing, on the severity of blackleg disease of rapeseed were studied in the field.
应用推荐