2, 1 105 means that May 20th11is the delivery month.

3. The quantity of rapeseed oil 1 is 5 tons. That's right. 10048 yuan means the price of 1 ton, 10048 yuan *2000 kg =5.024 yuan.

4. The settlement price is the average price of the transaction of the day, and the closing price is the price of the last transaction of the day.

I hope I can help you. In addition, the risks and benefits of futures are amplified by leverage. Novices must be familiar with the rules of the game before entering the market.