硫酸奎宁的特征鉴别反应为( )。
A.Marquis反应B.绿奎宁反应C.Vitaili反应D.双缩脲反应
参考答案:B
解析:[知识点] 硫酸奎宁的分析
With the word “ PM2.5” ________ appearing in media reports, people pay greater attention to it and seek health tips for smoggy days.
A.constantly
B.consequently
C.permanently
D.immediately
对资金清算业务涉及的往来资金款项科目下往来资金户必须()核对,对挂账资金原则上应在()个工作日内查清收回。
A.每日;10
B.每周;7
C.每日;7
D.每周;10