There were two opposing views of development in the 19th century. A push performance degradation is based on the second law of thermodynamics system, it argues that, due to the dissipation of energy, the world tends to be weak, the universe tends to "heat death", the structure of the retreat, disorder tend to the maximum, the whole world over time and the process of dying; Another is based on Darwin's theory of evolution of the evolution of the concept system, it points out that social evolution is the result of the increasing division of species, the evolution and increased, structure complex and orderly, and constantly reinforced by functional evolution, all nature and human society are to develop more advanced, more orderly organization structure. 6. The accounting benefit is bound by the prudent principle. According to the principle of prudence, when there are a variety of accounting methods to choose from an economic business of an enterprise, it should choose a method that neither overestimates nor depreciates the benefits. Enterprises manipulate profits to achieve homogenization of profits, most of which adopt the method of overestimating earnings, and the subjective selection of the period of value-added. The bank maintained its main interest rate by 0.0 percentage point and raised its 2017 GDP growth forecast by 2 percentage points to 2.4 percentage points. Loading may be the work which is invested in a work centre. For example, time might be lost while changing over from making one component to another. If your machine breaks down, it won't be available. If there is machine reliability data available, this should also be considered. Sometimes the equipment might be awaiting parts to arrive or be 'idling' for many other reason. Other losses could have an allowance for the machine being run below its optimum speed plus an allowance to the 'quality losses' or defects which your machine may produce. Of course, several losses should be small or non-existent in the well-managed operation. Finite loading is an approach which only allocates work to a work up to set limit. This limit is the estimate of capacity for that work centre (in line with the times designed for loading). Infinite loading can be an way of loading work which doesn't limit accepting work, but instead tries to handle it.