题目选项分析

Because the numbers 1 and 2 and the letters A and B have connotations they are aware of, companies conducting consumer taste tests of foods or beverages typically choose numbers such as 697 or 483 to label the products.

Aware of the connotations of the numbers 1 and 2 and the letters A and B, companies conducting consumer taste tests of foods or beverages typically choose numbers such as 697 or 483 to label the products.