久痢湿热流连不祛,病根未除,正气虚弱,治宜选
A.麻子仁丸B.更衣丸C.三物备急丸D.润肠丸E.五仁丸
参考答案:D
A collection of photographs _________in the museum were all taken twenty years ago. [ ]
A. on the display
B. is on the display
C. on display
D. is on display
逐板法计算理论塔板数必须反复应用的关系式有()
A.精馏段操作线方程
B.提馏段操作线方程
C.汽液相平衡关系式
D.热量衡算式