Flowing work means that the workers act on the labor object in order according to the operating process, and complete a certain amount of work at a certain stage in the production process, so that production is carried out continuously without interruption. According to the above definition, which of the following is items that do not belong to the flow operation? ['A highway engineering headquarters contracted 10 bidding sections to 10 construction units at the same time.', 'After a construction team completes one construction object, go to complete another construction object.', 'A construction team worked on the 10th floor for a week. After completing the task, the third day moved to the 11th floor to do the same work.', 'A construction unit starts construction for all construction objects at the same time and then ends at the same time.']