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【单选题】
盐酸副玫瑰苯胺法测定食品中二氧化硫时,食品中的亚硫酸盐首先与下列哪种物质产生稳定的络合物,然后再与甲醛及盐酸副玫瑰苯胺作用产生紫红色络合物( )A.
二氯化汞
B.
四氯汞钠
C.
氯化钠
D.
氯化镁
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反馈参考答案：
举一反三
【单选题】Dividing the market of Tianfu College by gender and grade into small market is regarded as ______.
A.
m arket segmentation
B.
market targeting
C.
market positioning
D.
marketing research
【单选题】Dividing a market into several sections of customers is known as ________.
A.
mass customization
B.
market positioning
C.
market segmentation
D.
value engineering
【判断题】Market segmentation is the process of dividing a broad consumer or business market into sub-groups of consumers.()
A.
正确
B.
错误
【单选题】Dividing a market into several sections of customers is known as ________.
A.
mass customization
B.
market positioning
C.
market segmentation
D.
value engineering
E.
undifferentiated marketing
【单选题】Dividing a market into several sections of customers is known as ________.
A.
mass customization
B.
market positioning
C.
market segmentation
D.
value engineering
E.
undifferentiated marketing
【多选题】下列关于分批法的说法中不正确的有( )。
A.
分批法也称定额法
B.
分批法适用于小批单件及大批生产
C.
按产品批别计算产品成本也就是按照定单计算产品成本
D.
如果一张定单中规定有几种产品，也应合为一批组织生产
【简答题】上呼吸道包括 、 和 。而 和 称下呼吸道。
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