The deregistration of shares refers to the reduction of a part of the company's shares in accordance with the issuing procedure. The total write-off of the company's shares only occurs when the company is dissolved. In addition, through the buyback of shares and the merger of the company with the shares of the company, it can also achieve the purpose of the cancellation of shares Because economists understand earnings as actual material wealth increase, accounting experts think the output value of more than the difference between the input value is profits, there is a contradiction and two kinds of income concept. The specific performance is: 5. The sealing ring of the gasoline pump in the trunk or lower part of the seat is damaged. But in order to better future, we must expand the definition of the word "profit", the economic benefits and social benefits are included, and understand that block chain itself is a social innovation of technical solutions. Agency workers are collectively underpaid by £400m a year compared to their full-time counterparts, with the pay gap costing temporary admin staff £990 a year on average, according to new research. Keynes argued that savings and investment were two interdependent variables, not two independent variables.