2. Crude oil futures are a kind of commodity futures.

3. Crude oil futures are the most traded commodity futures in the world.

4. International crude oil is denominated in US dollars, the US dollar appreciates, crude oil falls, and the US dollar depreciates. The price of crude oil has gone up.

5. All commodities denominated in US dollars meet the above Article 4. The rise and fall of the dollar can cause the rise and fall of crude oil and other commodity futures.

6. The rise and fall of crude oil is not necessarily related to the rise and fall of other commodity futures, but is caused by factors such as the US dollar.