Drive to the central hospital

1. Order method
limit order: the user needs to specify the price and quantity of the order. Limit order can be used for opening and closing positions
order at opposite price: if you choose to order at opposite price, you can only enter the order quantity, not the order price. The system will read the latest competitor price at the moment of receiving the entrustment (if the user buys, the competitor price is the selling price of 1); If it is a sell, then the counter price is buy 1 price). Issue a price limit order for this counter price.

2. It should be OK
but pay attention to wearing masks. Avoid infection

3. I don't think the old players depend on the year, as long as you know enough about them

4. Address: the first floor of Yanbu office building, No.1 Yanbu Zhijie, Dali Town, Nanhai District, China