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简述营业周期的含义和计算公式？

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简述现金周期的含义和计算公式？

[音频]Section A (5%)Directions: In this section, you will hear two news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then write the corresponding letter on the Answer Sheet.News Report OneQuestions 1 and 2 are based on the news report you have just heard.1.

A. The man in the car was absent-minded.
B. The test driver made a wrong judgment.
C. The self-driving system was faulty.
D. The car was moving at a fast speed.

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2.

A. They have done better than conventional cars.
B. They have caused several severe crashes.
C. They have posed a threat to other drivers.
D. They have generally done quite well.

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News Report TwoQuestions 3 to 5 are based on the news report you have just heard.3.

A. Raise postage rates.
B. Improve its services.
C. Redesigndelivery routes.
D. Close some of its post offices.

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