家乐福超市某商品的年需求量D为1000000件，定购成本C为每次450元，单位商品年持有成本K为100元，则该商品的经济订货批量EOQ为（）件。
A．3000
B．2000
C．2500
D．3500
参考答案：A
解析：
依据经济订货批量EOQ的计算公式，该商品的经济订货批量为：EOQ=
。式中，C为每次订购成本；D为年需求量；K为单位商品的年持有成本。
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| When Susan was at university, she often went to 1 library. It was a beautiful building. She liked it because it was nice and quiet. Sometimes 2 the library she worked on the computer and did 3 research. At other times she read history books. She discovered many 4 things about the past. She learnt about how difficult life was in the past. She often 5 a notebook with her so that she could make notes in it. | ||||
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