题目内容

当一种产品的价格上涨时,导致另一种产品的需求量增加,这两种产品属予()

A. 低档品
B. 互补品
C. 替代品
D. 独立品

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某份试卷按百分制计分,现用再测法来考察测验的信度,应计算两次测验分数的()

A. 积差相关
B. 等级相关
C. 点双列相关
D. 列联相关

The credit of letter will be confirmed by the Bank of China, Shanghai, that will _______your draft on the documents at sight for the amount of your invoice.

A. accept
B. pay for
C. receive
D. obtain

Many international companies produce a large number of products, often divided into product________.

A. categories
B. mix
C. brands
D. lines

经济利润等于()

A. 销售收入减去会计利润
B. 销售收入减去机会成本
C. 企业总收入减去会计利润
D. 企业总收入减去会计成本

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