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【单选题】
数据库领域中主要的逻辑数据模型不包括()A.
层次模型
B.
关系模型
C.
网状模型
D.
人工智能模型
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反馈参考答案：
举一反三
【单选题】Explicit costs are payments to ______
A.
hourly employees
B.
insurance companies
C.
utility companies
D.
all of the above
【单选题】As a general rule, when accountants calculate profit they account for explicit costs but usually ignore
A.
certain outlays of money by the firm.
B.
implicit costs.
C.
operating costs.
D.
fixed costs.
【单选题】Total revenue minus only explicit costs is called
A.
accounting profit.
B.
economic profit.
C.
average total cost.
D.
None of the above is correct.
【单选题】The explicit and implicit costs associated with corporate default are referred to as the _____ costs of a firm.
A.
default beta
B.
direct bankruptcy
C.
indirect bankruptcy
D.
financial distress
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