单项选择题

When designing the packaging, you should concern about ______.

A．the number of items to be put in a package
B．the taboo of a certain culture
C．the size and the color
D．all of the above
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单项选择题
The relationship between the salesman and the customer is ______.
A．one of selling techniques which could express the cultural differences
B．based on mutual trust in some countries,
C．very important to the selling process
D．all of the above
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