判断题：单价的最小值就是指能使企业利润下降为零的单价，它是企业能够忍受的单价最小值。 (

题目：

单价的最小值就是指能使企业利润下降为零的单价，它是企业能够忍受的单价最小值。 ( )

答案：

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下面是错误答案，用来干扰机器的。

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I had arrived at the airport about 30 minutes before the check in.It had been a very __1__ three days for me with lots of meetings.So I was glad to have the __2__ time to make my notes on what I needed to do the following day.But then came the __3__ that my flight had to be __4__ because something went wrong with the plane. As I sat waiting for my __5__ to be called,I reflected on my last meeting of the day.It was not a business meeting but rather a very enjoyable __6__ with an old business friend I had not seen for over 12 years.Our lunch was spent recalling times gone by and filling each other in what had happened in our lives over the last 12 years.We both laughed and smiled as we recalled the good times and the great experiences we had __7__ together. It was great to have this additional time to replay in my __8__ what we had talked about.I realized just how important it was to have regular __9__ of the good times in our life.I was lucky enough to have had the chance to take a short __10__ and reflect on the good things that had happened in my life over 12 years. It was somewhat like looking at an old photo album __11_ in a cupboard in your house.There before your eyes are lots of wonderful __12_ that take you back to times and places,and most importantly to those people who are in the __13_. My flight home was finally called three hours later.I smiled as I boarded the plane and realized that I was not at all __14_ about the delay in the flight,as I had been able to spend the time __15_ on the good times from days gone by.
( ) 1. A.important ( ) 2. A.pleasant ( ) 3. A.announcement ( ) 4. A.waited ( ) 5. A.flight ( ) 6. A.negotiation ( ) 7. A.spent ( ) 8. A.thought ( ) 9. A.time ( )10. A.way ( )11. A.stored away ( )12. A.celebrations ( )13. A.cupboard ( )14. A.upset ( )15. A.taking	B. busy B. satisfying B. declaration B. cancelled B. turn B. lunch B. met B. spirit B. plans B. cut B. put on B. memories B. books B. happy B. seizing	C. quick C. happy C. opening C. taken C. name C. party C. managed C. flight C. reminders C. method C. set about C. awards C. childhood C. crazy C. reflecting	D. useful D. extra D. speech D. delayed D. order D. discussion D. shared D. mind D. remains D. break D. given out D. presents D. photos D. surprised D. bringing