what is the gross profit margin ratio It is also worth noting that in 1985, the financial accounting standards board released the concept of income from the concept framework (SFAC)NO. 6. In 1989, the international accounting standards board's framework for preparing and providing financial statements made clear that benefits also included unrealized gains. In 1997, FASB's FASB N0.130 required a full return; In 1998, IASC's IAS NO.1 required the preparation of an equity change table, a comprehensive income statement, including the benefit of reflecting corporate assets. In addition, the national standard has strict regulations on the content of various chemical components of gasoline such as benzene and olefins. Alkenes are high in content, which can produce gelatinous substances in the process, and accumulate in intake manifold and valve catheter. When the engine is in normal working temperature, there is no abnormal phenomenon; When the engine has cooled for some time, the glial will stick the valve inside the valve tube. When you start the engine, you will have a top valve phenomenon. The toxic benzene content should not exceed 1%. The U.S. crude oil inventory unexpectedly fell 5.2 million barrels last week, pushing U.S. oil further higher, noted the zero hedge fund. U.S. crude stocks have declined for five consecutive weeks, while gasoline inventories have increased for five consecutive weeks. If there is a clear indication of an increase in the EIA Cushing crude inventory released on Wednesday (December 20), crude stocks could end the five consecutive decline. Interest rate Point six: look at the use of borrowing. The borrower's borrowing use must be clearly understood, applicable to the business turnover, the decoration shop and so on. So investors should pay close attention to the borrowers' borrowing and repayment methods.