本文研究了钙基蒙脱石吸附Cr~(3+)前后及不同温度热处理后产物的结构变化,运用了X射线荧光光谱法、X射线衍射术、傅利叶变换红外吸......

目的 比较口服补液盐、口服补液盐联合美托洛尔或口服补液盐联合盐酸米多君治疗儿童体位性心动过速综合征(postural tachycardia s......

Drought stress is often the most limiting factor to maize and sorghum production in the semi-arid areas.This study evalu......