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According to new research of Prof. Randolf Menzel from the Free University in Berlin, the popular image of bees as the ultimate hard workers was inaccurate. "Although we see bees buzzing around tirelessly in spring and summer, the common belief in a bee’s busy nature is based on a misconception," he said. People only really see bees when they’re out flying, or they look at a colony of bees and see thousands of them buzzing around. They don’t get to pick them out as individuals. The professor, who this month won a German Zoological Society award for his work on bees, added that bees compensated for their apparent laziness with high intelligence, advanced memory skills and an ability to learn quickly. The suggestion that bees were not pulling their weight met with skepticism from British beekeepers. Glyn Davies, the President of the British Beekeepers Association, said that bees were not lazy but efficient. "At any particular stage in its life, a bee has a specific job to do. If they are unable to do that job, they conserve their energy by doing nothing. Each bee has a unit of life energy and the faster it works, the faster it dies. They are being very wise and perhaps humans should try to follow their example instead of running about like headless chickens. " The idea of the busy bee is several thousand years old. One current author who has nothing but admiration for the bee is Paul Theroux, the novelist and part-time beekeeper. "I have never seen a bee sleeping. My bees never stop working. " he said, Mr. Theroux, who keeps 85 hives each containing 30000 bees in Hawaii, added that Prof. Menzel’s research could have been affected by his national origins. "Perhaps in comparison to the German rate of work, the bee does look lazy," he said. Few people think that the busy bee idea will go away, despite the efforts of Prof. Menzel. It performs too many useful functions in our culture. In fact, the worship of hees seems to be undergoing a renaissance. IBM recently ran a series of ads drawing on the " waggle dance" of bees, telling businessmen to "make your business waggle. \ According to Glyn Davies, what should we learn from bees
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According to new research of Prof. Randolf Menzel from the Free University in Berlin, the popular image of bees as the ultimate hard workers was inaccurate. "Although we see bees buzzing around tirelessly in spring and summer, the common belief in a bee’s busy nature is based on a misconception," he said. People only really see bees when they’re out flying, or they look at a colony of bees and see thousands of them buzzing around. They don’t get to pick them out as individuals. The professor, who this month won a German Zoological Society award for his work on bees, added that bees compensated for their apparent laziness with high intelligence, advanced memory skills and an ability to learn quickly. The suggestion that bees were not pulling their weight met with skepticism from British beekeepers. Glyn Davies, the President of the British Beekeepers Association, said that bees were not lazy but efficient. "At any particular stage in its life, a bee has a specific job to do. If they are unable to do that job, they conserve their energy by doing nothing. Each bee has a unit of life energy and the faster it works, the faster it dies. They are being very wise and perhaps humans should try to follow their example instead of running about like headless chickens. " The idea of the busy bee is several thousand years old. One current author who has nothing but admiration for the bee is Paul Theroux, the novelist and part-time beekeeper. "I have never seen a bee sleeping. My bees never stop working. " he said, Mr. Theroux, who keeps 85 hives each containing 30000 bees in Hawaii, added that Prof. Menzel’s research could have been affected by his national origins. "Perhaps in comparison to the German rate of work, the bee does look lazy," he said. Few people think that the busy bee idea will go away, despite the efforts of Prof. Menzel. It performs too many useful functions in our culture. In fact, the worship of hees seems to be undergoing a renaissance. IBM recently ran a series of ads drawing on the " waggle dance" of bees, telling businessmen to "make your business waggle. \ Prof. Randolf Menzel’s latest research ______.
Fear and its companion pain are two of the most useful things that men and animals possess, if they are properly used. If fire did not hurt when it burnt, children would play it until their hands were burnt away. Similarly, if pain existed but fear did not, a child would burn itself again and again, because fear would not warn it to keep away from the fire that had burn it before. A really fearless soldier—and some do exist—is not a good soldier because he is soon killed; and a dead soldier is of no use to his army. Fear and pain are therefore two guards without which men and animals might soon die out. In our first sentence we suggested that fear ought to be properly used. If, for example, you never go out of your house because of the danger of being knocked down and killed in the street by a car, you are letting fear rule you too much. Even in your house you are not absolutely safe: an airplane may crash on your house, or ants may eat away some of the beams in your roof so that the latter falls on you, or you may get cancer! The important thing is not to let fear rule you, but instead to use fear as your servant and guide. Fear will warn you of dangers; then you have to decide what action to take. In many cases, you can take quick and successful action to avoid the danger. For example, you see a car coming straight towards you; fear warns you, you jump out of the way, and all is well. In some cases, however, you decide that there is nothing that you can do to avoid the danger. For example, you cannot prevent an airplane crashing onto your house. In this case, fear has given you its warning; you have examined it and decided on your course, of action, so fear of this particular danger is no longer of any use to you, and you have to try to overcome it. Fear should be used properly because______.
Industrial safety does not just happen. Companies 【B1】 low accident rates plan their safety programs, work hard to organize them, and continue working to keep them 【B2】 and active. When the work is well done, a 【B3】 of accident-free operations is established 【B4】 time lost due to injuries is kept at a minimum. Successful safety programs may 【B5】 greatly in the emphasis placed on certain aspects of the program. Some place great emphasis on mechanical guarding. Others stress safe work practices by 【B6】 rules or regulations. 【B7】 others depend oh an emotional appeal to the worker. But, there are certain basic ideas that must be used in every program if maximum results are to be obtained. There can be no question about the value of a safety program; From a financial stand-point alone, safety 【B8】 . The fewer the injury 【B9】 , the better the workman’’s insurance rate. This may mean the difference between operating at 【B10】 or at a loss.
某企业有一投资项目，建设期为2年，运营期为5年。固定资产的原始投资为300万元，在建设期初投入180万元，在建设期的第2年年初投入其余的120万元。同时，在建设期末投入无形资产20万元，在运营期期初垫付流动资金50万元，建设期的资本化利息为 10万元。固定资产按直线法计提折旧，预计期满残值回收2万元。无形资产自项目投产后按5年摊销。项目投产后，运营期每年的销售量为1万件，销售单价为190元，单位变动成本60元，每年固定性付现成本25万元。该企业适用的所得税税率为33%，要求的最低投资报酬率为10%。 计算： (1)项目计算期； (2)项目原始投资额、投资总额和固定资产原值； (3)项目的回收额； (4)运营期每年的经营成本和营运成本； (5)运营期每年的息税前利润和息前税后利润； (6)项目各年的现金净流量； (7)项目不包括建设期的静态投资回收期； (8)项目的净现值。
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