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【判断题】
A正交矩阵的条件为a的列行向量都是单位向量且两两正交。A.
正确
B.
错误
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举一反三
【单选题】Powerful brand names sreate strong consumer _________________.
A.
image
B.
quality
C.
awareness
D.
loyalty
【单选题】This brand of toothpaste is the best one on the market.
A.
design
B.
management
C.
kind
【单选题】Powerful brand names create strong consumer __________.
A.
image
B.
quality
C.
awareness
D.
loyalty
【简答题】从4台甲型和5台乙型电视机中任意取出3台，其中至少有甲型与乙型电视机各1台，则不同的取法共有（ ）。
【单选题】Federal Express is a strong and appropriate brand name because
A.
it describes the nature and speed of the service and also suggests governmentally approved enterprises.
B.
it makes the superlative ability to track and deliver parcels, courteous employees and professional-looking uniforms.
C.
it is a lightning rod for criticism.
D.
it is a combination that doesn't need explanation.
【单选题】A primary feature that keeps a brand strong occurs when the brand contains something that is important to consumers is:
A.
diligence.
B.
acceptance
C.
salience.
D.
divergence.
【单选题】MRP II对生产管理的不同层次,引入不同的能力平衡方法与之相协调,其中在主生产计划这一层次对应的能力计划层次为( )。
A.
资源需求计划
B.
粗能力需求计划
C.
细能力需求计划
D.
生产能力控制
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