Hello, 1, crude oil is denominated in dollars, so it indirectly reflects the rise and fall of the dollar. There are also high crude oil prices that bring inflation to countries, so the ups and downs can reflect some fundamentals of the global economy. There are also signs that the global economy is booming and there is a great demand. Sometimes, after the global economic recession, there will be concerns about reduced demand, and there are also commodity attributes such as its link with gold.

2. Investors are worried about the political uncertainty in Greece, and the market expects the European Central Bank to expand its economic stimulus plan in the near future. The ICE dollar index hit a nine-year high of 9 1.78. Usually, the rise of the US dollar exchange rate will lead to the decline of commodity futures prices denominated in US dollars, because the cost for investors holding other currencies to buy these commodities will become higher. I hope you can adopt it. Thank you.