The importance of gasoline was not recognized in the 19th century, when it was used in a great deal of kerosene. The oil refining then relied on simple distillation processes to separate the different components of the oil from the boiling point. The boiling point of the kerosene component is higher, and the use of safety when lighting lamps becomes the main product of crude oil refining, while gasoline and other components are often burned as fuel. By the mid - to late 19th century, the successful use of gasoline engines in 1886, in 1886, the gasoline engine was successfully used as a driving force, thus the importance of gasoline increased. But using distillation, only 20% of the gasoline can be extracted from crude oil. In 1911, the standard oil company have solved the problem of low gasoline yield, by William burton and Robert hamm forest thermal cracking process of the invention, the heavy quality heating gas oil cracking of light gasoline fractions, such as to overall improve the gasoline yield, thermal cracking process in 1913 won the patent license in the United States. The subsequent catalytic cracking process has further improved the gasoline yield and octane value. 2. Equality of shares, that is, each share of the same kind shall have equal rights; disappointing because of the best performance of the global economy since the financial crisis. (2) enterprise liquidation or transfer of wholly owned subsidiaries and holding more than 95% of the business, should according to the state administration of taxation on printing < enterprise reorganization restructuring on certain questions in the business income tax provisional regulation > notice (guoshuifa (1998) no. 97) of the relevant provisions. Where the investor shall share the accumulated undistributed profit and accumulated surplus of the investor, the income from the dividend of the investor shall be recognized. In order to avoid double taxation on after-tax profits, it will affect the restructuring activities of the enterprise and, when the equity transfer proceeds of the investment party are calculated, the income from the dividend will be deducted from the transfer income. Ť he returned to the top five-year bond, because record lows in January has significantly improved, now pay 22 PC more than the beginning of the year. You should congratulate you on your tenacity. Over and over again via Twitter, live chat and email, you're told you don't have much to charge.