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题目内容
（佳木斯大学语言治疗学）
The Office Supplies account shows a beginning balance of $600 and aending balance of $400. If office supplies expense for the year is $3100, what amount of office supplies was purchased during the period ( )
·2700.0
·2900.0
·3300.0
·3500.0
·2700.0
·2900.0
·3300.0
·3500.0
参考答案
