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【单选题】
企业某种物资全年需要45000件，每月订购一次，保险储备天数为6天，该企业仓库年平均物资储存额为500万元，年总储存费用80万元。则该种物资的经济订购批量EOQ为（）。A.
100件
B.
150件
C.
240件
D.
300件
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举一反三
【单选题】听力原文：M: I have been tired of working and need a change. So I'm just making plans to go away during Spring Festival. W: Really? Where are you going? M: I'm planning to visit Tibet. W: My brother and I ...
A.
To work there.
B.
To relax after work.
C.
To see his relatives.
D.
To join an international conference.
【单选题】----I’m sorry, but making a telephone call is not allowed in the meeting-room. ----Oh, I_____that, Sorry, I don’t do that again.
A.
don’t know
B.
didn’t know
C.
won’t know
D.
haven’t known
【单选题】I'm having trouble _____complete conversations. [ ]
A.
to make up
B.
make up
C.
making up
D.
to making up
【单选题】Now that I'm only working part time，I have a hard time making _____ meet .
A.
hands
B.
arms
C.
days
D.
ends
【单选题】---I’m making ___ progress with the help of my teachers. --- Great! I hope you can go to ____ college next year.
A.
/; a
B.
the; /
C.
the; a
D.
/; /
【简答题】D羽调的调号是( )个( )号
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