It can be seen that shares and shares are the relationship between form and content and cannot be confused. In New York, the U.S. energy information administration (EIA) released data showing U.S. crude inventories fell by 649.5 million barrels a day in the week ended Dec. 15, beating expectations. Gasoline stocks rose by 12.37 million barrels, but the increase was less than expected. Compared with the Internet boom that preceded the information age, the blockchain era is almost as hot as it was in 1998, and the cryptocurrency world is inviting mainstream participation. A historical experiment. In 1934, the Chrysler corporation of the United States first adopted a streamlined body design. In 1937, German design genius fernand porsche began designing cars resembling the beetle. Not only did the beetle crawl on the ground, but it also flew in the air, and its physical resistance was small. Dr Porsche maximized the merits of the beetle's appearance, making "vw" cars the representative work of streamlined cars at the time. The "golden age" of the beatles was the "golden age" of the car from the 1930s to the late 1940s. The difference between the income and the total income has been realized The difference between financial capital preservation and physical capital preservation