芦丁和槲皮素用下列层析法鉴定,芦丁Rf值大于槲皮素的是() ["硅胶TLC,EtOH-EtOAc-HCOOH-H2<\/sub>O(5:3:1:1)","聚酰胺TLC,70%EtOH展开","PC,n-BuOH-HOAc-H2<\/sub>O","PC,HOAc-HO2<\/sub>(15:85)展开","以上方法均可"]
自然伽玛曲线上显示高幅度值的是()。 ["页岩","砂岩","灰岩","石膏"]
乙琥胺可引起() ["瞳孔扩大","再生障碍性贫血","共济失调","急性心力衰竭","呼吸抑制"]
海氏工作评价系统有美国工资设计专家()研究开发出来。 ["爱德华.海","M.R.罗特","查尔斯.E.比多","E.J.本基"]
吗啡易引起() ["快速耐受性","成瘾性","耐药性","反跳现象","高敏性"]
影响固井声幅测井曲线的因素有哪些?