The optimal combination of benefits and risks is the best combination of benefits and risks. If the benefit is certain, the risk is minimized; Gasoline is the largest oil product consumed in the United States last year, according to the U.S. energy information administration (EIA). Last year, gasoline consumption averaged about 9.3 million barrels a day (391 million gallons) a day, a record high, about 47 percent of U.S. oil consumption. As hicks income concept did not specify what is called "equal wealth", and thus the income concept formed the basis of many debates concept, and the theory of accounting earnings, especially the capital preservation theory has a great influence. In accounting, people used to call "maintaining the same level of affluence" as capital preservation. Yu 'ebao used to have peaks and valleys According to the latest standard GB/T 3730.1-2001, cars are mainly divided into passenger cars and commercial vehicles. Revenue from the storage business grew by 7% to $1.4 billion, largely driven by a significant increase in SSD sales. On a year-on-year basis, revenue was up 61%, mainly driven by an increase in SSD market share... In the consumer market, client market, enterprise and cloud market growth reached double digits.