尿毒症病人高血钾最有效的治疗方法是
A．输入碳酸氢钠
B．输入钙剂
C．输入高渗葡萄糖加胰岛素
D．进行血液透析
E．口服钠型阳离子交换树脂
参考答案：D
The visitors ____ that they ____ very glad to visit our company. [ ]
A. said; were
B. said; had been
C. told; were
D. said; are
掌握其他胺盐型阳离子表面活性剂的种类和主要用途
