essential oils to repel flies At present, about the nature of the enterprise. Western economists have different views. There is also some debate. Some western economists analyze the nature of the enterprise mainly from the perspective of transaction costs that coase emphasizes. A possible reason for the gasoline smell of a car In November 2017, Advisor Perspectives published an article said that in addition to the improvement of fuel efficiency, petrol consumption decline is due in large part to the following factors: the ageing staff away from the workplace; The home office model is developing more and more; Social media takes the place of face-to-face communication, and travel is unnecessary. More and more young people are no longer driving their cars. And urban population growth accelerated, reducing per capita gasoline dependence. According to the local biggest news agency Press Trust of India news agency (Press Trust of India) reported that, according to official sources in nine exchange about 2 million registered users, about 400000 to 500000 people have been conducting currency trade and investment. Network planning technology was developed and developed in the United States in the late 1950s. This approach includes a variety of web-based methods, such as critical path method, planning review technology, combined network method, etc.