Direct selling refers to a business method in which a direct selling company recruits direct sellers who directly sell products to end consumers outside the fixed business premises. Which of the following are direct sales (). ['After a dairy product manufacturer selects a salesperson, it has set up a hundred sales points in the city to sell dairy products at a uniform price.', 'A bookstore adopts an online sales method. After the customer places an order, the courier will deliver the product to the designated place and charge a fee.', 'Some salesmen recruited by a makeup brand set up stalls along the road to distribute product descriptions and sell them to customers at lower prices.', 'At the beginning of the new year, the freshman Xiaohe bought five desk lamps at the wholesale market, one for his own use, and the other four sold to classmates.']