oil price trend Tubes in today's world is filled with harmony and polarization phenomenon, but still people are eager to build a better future, enable people to realize self-management, and supporting the social institutions really serve the people. What should we do now, other than what we have achieved? V6 motor Subconsciously creating space to create diversity and inclusiveness - we have just entered the era of blockchain and are still working on this technology. The creators in this field are younger and mostly white men. This is not conducive to creating an attractive environment for more diverse people, and diversity is needed to develop powerful global products. There is no risk of this arbitrage. Range and once the two currencies yield, the yield of arbitrage mechanism will make two currencies are equal, that is, different interest rates in the currency of the country there is inherently a trend towards an equalization and trend, it is the interest rate index key aspects of the impact of foreign exchange to, also is our interpretation and grasp the key interest rate index.