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【单选题】
关于POS机要货，下列表述错误的是（）。A.
要货单保存时，系统会将同一商品编码的要货记录合并。
B.
记账后的业务单据才能够被通信程序发送到后台业务系统，未记账的单据不会通讯到后台服务器。
C.
在进入要货单操作界面时默认进入要货单制作界面，如需做其他操作，按（总清）键退出要货单制作界面后进行其他操作。
D.
要货单只有记账了才能真正生效，且记账后的单据不可修改或删除。
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反馈参考答案：
举一反三
【单选题】Average cost declines as output expands in a production process with:
A.
constant returns to scale.
B.
decreasing returns to scale.
C.
decreasing returns to a factor input.
D.
increasing returns to scale.
【单选题】Which of the following items would be associated with unexpected losses? I. Loan defaults are increasing simultaneously while recovery rates are decreasing. II. Lending losses are covered by charging ...
A.
I only.
B.
II only.
C.
Both I and II
D.
Neither I nor II.
【单选题】Suppose that a given firm experiences decreasing marginal product of labor with the addition of each worker regardless of the current output level.Refer to Scenario 5-1. Average total cost will be
A.
rising at all points.
B.
falling at all points.
C.
constant.
D.
U-shaped.
【简答题】Conversation 2 6. A. The cost of advertisement is increasing. B. Advertising can’t attract enough customers. C. The whole market is shrinking at present. D. The sales of his business are decreasing....
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