Point five: look at the repayment risk. Reimbursement risk fee, is that when investors corresponding borrower overdue list creditor's rights or bad debts, so risk fee reimbursement amount of account can be used to repay the principal and interest first, this will let next fall risk level, safety coefficient is relatively high, so it is more important, investors when the choice must be made sure. The investment of securities provides an important means for the central bank to conduct financial macro-control, which is of great significance to the sustainable and efficient development of the national economy. The accounting income maintains the financial capital preservation, namely, the monetary value that only requires the owner to invest is not eroded, the enterprise income exceeds the input value part is the accounting income. Accounting focuses on reporting financial results. The economic benefits insist on physical capital preservation, which can only be confirmed when the actual production capacity of the owner is saved. It is believed that only by maintaining the actual production capacity of the enterprise can the enterprise reproduce smoothly. Physical capital preservation is more meaningful than the income of financial capital preservation, but it is difficult to measure. Angelina Jolie can be an American talented actress cum director. She has received an Academy Award, two Screen Actors Guild Awards, and three Golden Globe Awards. Jolie has produced her name as an actress who are able to easily handle action, drama as well as directing. She wrote and directed the upcoming film "In the Land of Blood and Honey", a romance set from the backdrop from the Bosnian War. The two big-budget 2010 action movies, "Salt" that has been originally written for Tom Cruise, brought in $300 million with limited funds of $110 million and "The Tourist" earned 75% of its $280 million overseas market. The focus of 2017 also includes making blockchain workplaces more attractive.