问题
填空题
在求得优先权重后,层次分析法再用()的方法递阶归并各备选方案对总目标的最终权重,此最终权重值最大者即为层优方案。
答案
参考答案:加权和
在求得优先权重后,层次分析法再用()的方法递阶归并各备选方案对总目标的最终权重,此最终权重值最大者即为层优方案。
参考答案:加权和
阅读下列短文,从每小题所给的四个选项(A、B、C和D)中,选出最佳选项。 |
Strange thing happens to time when you travel. Because the earth is divided into twenty-four time zones one hour apart, you can have days with more or fewer than twenty-four hours, and weeks with more or fewer than seven days. If you make a five-day trip across the Atlantic Ocean, your ship enters a different time zone (时区) every day. As you enter each zone, the time changes the hour. Travelling west, you set your clock back; travelling east, you set it ahead. Each day of your trip has either twenty-five or twenty-three hours. If you travel by ship across the Pacific you cross the International Date Line. By agreement, this is the point where a new day begins. When you cross the line, you change your calendar the full day, backward or forward. Travelling east, today becomes yesterday; travelling west, it is tomorrow! |
1. The best title for this passage is . |
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A. A Trip Across the Atlantic B. How Time Changes Around the World C. Crossing the International Date Time D. How Time Zones Were Set up |
2. From the passage it seems true that the Atlantic Ocean . |
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A. is in one time zone B. is divided into twenty-four time zones C. is divided into five time zones D. cannot be crossed in five days |
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3. The International Date Line is the name for . |
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A. the beginning of any new time zone B. the point where time change by one hour C. the point where a new day begins D. any time zone in the Pacific Ocean |
4. If you cross the ocean going east, you set your clock . |
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A. ahead one hour in each new time zone B. ahead one time for the whole trip C. back one full day for each one full day D. ahead by twenty-three hours |