The difference between the income and the total income has been realized Hybrid cars, which add an internal combustion engine to pure electric vehicles, aim to reduce the pollution of cars and improve the mileage of pure electric vehicles. Hybrid vehicles have serial and parallel structure. Historically, the concept of income has first appeared in economics. Adam Smith, in the wealth of nations, defined income as "the amount of consumption that is not eroded by capital", and saw it as an increase in wealth. Later, most economists inherited and developed this view. 1890, ai (Alfred Marshall Maarshell) in its "the principles of economics," the Adam Smith's "wealth increase" enterprise, introduced the concept of earnings, is proposed to distinguish the entity capital and value-added benefits of economic benefits. Advertisement The plan, which is applied to the organization as a whole, is called a strategic plan for the organization to set up overall goals and to seek the organization's place in the environment. The plan for the details of how the overall goal is implemented is called the job plan. The strategic plan and the job plan are different in terms of time frame, in terms of scope and whether they include a set of organizational goals that are known. Strategic planning tends to include persistent intervals of time, usually five years or more, covering a wide range of areas and does not specify specific details. Furthermore, an important task of the strategic plan is to set goals; The job plan assumes that the goal already exists, but only provides a way to achieve the goal. Of course, in addition to the interest rate cut, yu 'ebao has also lowered the limit of personal accounts, from 1 million yuan to 250,000 yuan, to 100 thousand yuan. In recent days, it has been announced that yu 'ebao's one-day purchase quota will be adjusted to 20,000 yuan, all of which are aimed at reducing risks. The difference between financial capital preservation and physical capital preservation