Job由Work flow和Data flow构成（ ）
举一反三
- Work Flow控制Data Flow的逻辑流程，Data Flow定义物理ETL操作
- Every transaction in electronic commerce includes information flow, commercial flow, （） and material flow. A: merchandise flow B: data flow
- Flow control is one of the basic functions of the data link layer. Regarding flow control, which one is correct among following statements? A: Only the data link layer has flow control B: Not only the data link layer has flow control, but the flow control objects of each layer are the same C: Not only does the data link layer have flow control, but the flow control objects of each layer are different D: None of the above is right
- （）is not a physical wall but a flow virtual data to protect the computer network.
- The working conditions were poor. _______, the work flow was irregular.