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单选题
施工成本计划的编制以成本预测为基础，关键是确定（ ）。
A
预算成本
B
计划成本
C
实际成本
D
目标成本
参考答案
参考解析
解析：
施工成本计划是施工项目成本控制的一个重要环节。
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单选题The number of speakers of English in Shakespeare’s time is
estimated (估计) to have been about five million. Today it is estimated that some
260 million people speak it as a native language, mainly in the United States,
Canada, Great Britain, Ireland, South Africa, Australia and New Zealand. In
addition to the standard varieties of English found in these areas, there are a
great many regional and social varieties of the language as well as various
levels of usage that are employed both in its spoken and written
forms. In fact, it is impossible to estimate the number
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Those geographically close to the United States.B
Those interested in the culture of the United States.C
Former colonies of Great Britain.D
Countries where international conferences are held.
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