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题目内容
（国家开放大学管理英语3.）
A budget is an estimation of the _______ and _______ over a specified future period of time.
选择一项：
A.
cost; expense
B.
revenue; expenses
C.
revenue; interest
选择一项：
A.
cost; expense
B.
revenue; expenses
C.
revenue; interest
参考答案