According to the article, how did stereotypes shape life in Amelia Valdez’s barrio（）
A. Young people were forced to join a gang and fought with other gangs
B. If interested in study, people would be considered as timid and indecisive
C. The barrio made people living in it feel safe and happy
D. Chicanos didn’t develop many skills because they needn’t compete for jobs
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Generally speaking, there are two kinds of inventory which are______（）
A. Goods
B. Materials
C. Materials and products
D. Raw materlals and finished products
What is the equipment of a warehouse（）
A. Tools
B. Tools for handling, loading and unloading
C. Forklift trucks
D. Forklift trucks and goods shelves
What is the optimal level of inventory（）
A. The amount that you can sell as much as possible
B. The amount that you can barely meet market expectation
C. The amount to meet market demand with minimizing your current and potential Inventopry costs
D. The amount that you can get the most profits
Why is customer service an important element？ Because it can__（）
A. retain and keep customers
B. gather information about competitors
C. develop new market
D. strengthen business partner relationships
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