皮皮学，免费搜题
登录
搜题
【单选题】
pH=5.5时,用二甲酚橙为显色剂测定某一试液总微量Zn2+。若试液本身无色,二甲酚橙与其他共存离子不显色,则在用分光光度法测定锌时,应选择的参比溶液为()A.
不含Zn2+的试剂参比液
B.
蒸馏水
C.
含Zn2+的试剂参比液
D.
不含二甲酚橙的试液
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】在奇瑞出现之前,中国老三样是
【判断题】Assets are the resources of a company and are expected to yield future benefits.
A.
正确
B.
错误
【判断题】Assets are the resources a company owns or controls that are expected to yield future benefits.
A.
正确
B.
错误
【判断题】Assets are resources an entity controls as a result of past events and from which future economic benefits are expected to flow to the entity.
A.
正确
B.
错误
【判断题】Assets are the resources of a company and are expected to yield future benefits.
A.
正确
B.
错误
【简答题】Assets are resources ________by an entity.
【判断题】Assets are the resources of a company and are expected to yield future benefits.
A.
正确
B.
错误
相关题目：
参考解析：
知识点：
题目纠错 0
发布
