单选题 Paperless offices and hot desk Traditional offices file their paper in filing cabinets, which require a lot of space. But a paperless office just has a desk, chair, and computer and all of the information is filed in digital form. Paper is difficult to find and is often difficult and expensive to update. In a paperless office everybody can access all the information from their desk. Modern computer screens make reading less tiring and a laptop computer can be used on a couch or in bed. This means with the proper connection, people can work from home and do not have to come into the office, allowing a company to introduce the system of hot desking(员工大部分时间不在办公室,没有自己的办公桌而将私人物品放在置物柜里的一种工作形态). Hot desking is an office organization system that means many workers use one desk during different time periods. The "desk" refers to an office desk that is shared by many office workers on different shifts or by people working from home and only coming into the office now and again. One main reason for hot desking is that it is much cheaper as it saves on office space --- up to 30% in some cases.小题:Hot desking is an office organization system that __________