某企业设计生产能力为年产某产品40000吨，在满负荷生产状态下，_爱下问搜题

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问题单项选择题

某企业设计生产能力为年产某产品40000吨，在满负荷生产状态下，总成本为30000万元，其中固定成本为10000万元，若产品价格为1万元/吨，则以生产能力利用率表示的盈亏平衡点为（）。

A.25%

B.35%

C.40%

D.50%

答案

参考答案：D

解析：

生产能力利用率表示的盈亏平衡点BEP（%），是指盈亏平衡点产销量占技术方案正常产销量的比重。以生产能力利用率表示的盈亏平衡点为：F为固定成本Sn为年营业收入；Cv为年可变成本；T为年营业税金及附加。本题中，CF=10000，Sn=1×40000=40000，Cv=20000，T=0，则。

完形填空

My friends and I had just finished lunch at a hotel when it started to pour 1 . When it became lighter, I decided to get my car, which was 2 at my office three streets away.
My friends argued that I shouldn’t go, mainly because I was seven months pregnant then. I assured them that I’d be very 3 .
I walked out of the 4 and started making my way to the car. At the traffic junction, a van stopped and the passenger got off with an umbrella. Before I knew what was happening, he walked right beside me and told me he’d escort(护送) me to my 5 . I was very embarrassed and declined(辞谢), but he was very 6 .
During our 7 , he kept telling me to walk slower, as the ground was 8 . When we got to the car park, I 9 him and we parted ways. I did not get his 10 and may not even recognise him now. Did he 11 stop for me? I’ll never know.
So how did I pay it forward? I was at home when I 12 two Indian construction workers walking in the heavy rain. They were probably on their way to the construction 13 near my estate, which was a long walk in. I went out and passed them an umbrella. I told them they should take the umbrella and 14 it. They were very grateful and like me, probably wondered why a 15 was offering such kindness.

A．destination

多项选择题

广义的文献检索包括两部分，即（）文献的过程。

A.组织；

B.标引；

C.存贮；

D.查找。