问题
单项选择题
某物资库存系统中的安全库存量为20件，需求量的期望值为100件/月，单位货物每月的储存费为0.5元/件·月，提前订货期的期望值为6天，每次订货费为100元，则其最佳订货批量、最小库存总费用和订货点为______。
A．200，110，520
B．400，110，40
C．1 200，100，40
D．200，110，40
答案
参考答案：B
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某物资库存系统中的安全库存量为20件，需求量的期望值为100件/月，单位货物每月的储存费为0.5元/件·月，提前订货期的期望值为6天，每次订货费为100元，则其最佳订货批量、最小库存总费用和订货点为______。
A．200，110，520
B．400，110，40
C．1 200，100，40
D．200，110，40
参考答案：B
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| Mr. Black lived in a small town. Nobody was 1 than him there, but he wished to get 2 money all the time. One day on his way home, he found there was a 3 on the ground. He thought it was 4 to him, so he picked it up and put it in his pocket That 5 , after he had supper, he brought it out and began to 6 it in the room. He was interested in a piece of news on it Some gold 7 in a desert He was afraid someone would know about it and started off, 8 telling anybody about it. He tried to find the place 9 the gold was. The greedy man walked on the 10 desert for two weeks, but he didn't find any gold and his food and water was 11 . His horse was so weak that he couldn't 12 it. He had to go back to his hometown, but it was too 13 . His horse at last died and he was too hungry and thirsty to go any 14 . He looked around, there was nothing 15 sand. Suddenly he saw a man 16 on the ground far away. He crawled to him and found he was 17 , with a bag in his hand. He hurried to open the bag to find something to 18 ,but it was full of gold. He threw it away. As he was 19 , he cried and said," Now a bag of bread is far more 20 than a bag full of gold. How unhappy I am!" | ||||
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