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【单选题】
What is a firm's gross profit?
A.
the difference between the sales and other income generated by the firm, and all costs, taxes, and expenses incurred by a firm in a given period
B.
the difference between sales revenues and the costs
C.
the difference between sales revenues and cash expenditures associated with those sales
D.
all of the above
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参考答案：
参考解析：
刷刷题刷刷变学霸
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【多选题】下面的是现浇板的尺寸,( )是单向板。
A.
3000mm ×4500mm
B.
2700mm ×4500mm
C.
2400mm ×7500mm
D.
1800mm ×6000mm