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es our a great some of time. Secondly, more choices than real store are another attraction to customers. Online shopping can provide mass information about products which can be suit for customer s needs, tastes, and preferences. Thirdly, as without traditional warehouses and retail shops, online shopping has can make us gain lower costs and prices. However, in spite of its advantages, we can t turn a blind eye to its disadvantages. Obviously, quality problem is its first disadvantage. Customers always buy fake modities which are not described as online shops. In addition, it s troublesome and annoying for us to make a change when they are not satisfied with what we bought online. The second disadvantage is security issues. When we shop online, we need pay for the modities by electronic payments, but hackers can invade our puters and steal our information, this is n