久泻不止、脱肛或子宫阴道脱出的证候见于______。    A．脾虚不运    B．脾不统血    C．脾胃虚寒    D．脾气下陷    E．寒湿困脾

A．The key survey is a comprehensive survey conducted by selecting a part of the samples among the survey subjects
B．Observation can obtain a lot of real first-hand data, but it takes a lot of manpower, material resources, financial resources and time
C．Observation is a kind of blind passive feeling
D．The meaning of validity and reliability of statistical data is consistent

A．农业热量资源增加
B．中晚熟作物播种面积减小
C．部分作物单产和品质降低、耕地质量下降
D．农业病虫害加剧