日用消费品、工业品中的标准件，一般可以采用较长的分销渠道，而高档消费品、工业品中的专用设备或成套机组则应采用较短的渠道结构。
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基于模型的企业诊断过程是从企业模型抽取诊断模型，结合诊断方法与诊断规则，发现并分析企业经营过程中存在的问题、提出改进意见的过程。
A. 正确
B. 错误
大翼除冰从发动机的哪一级引气？（）
A. P2
B. P2、5
C. P3
D. P4
A Certificate of Financial Responsibility attests that the vessel（）.
A. has financial backing to meet any liability resulting from the discharge of oil
B. has the minimum required amount of P & I and hull insurance
C. will assume the responsibility for any damage or loss to the shipper
D. has financial reserves to meet reasonable expected crew costs of an intended voyage
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