(28)
- A．有且仅有一条数据流
- B．至少有一条数据流
- C．可以有0或多条名字互不相同的数据流
- D．可以有0或多条数据流，但允许其中有若干条名字相同的数据流
-
(79)
- A．gives
- B．distinguishes
- C．has
- D．difference
-
(78)
- A．conducted
- B．increased
- C．reduced
- D．deducted
-
(77)
- A．general
- B．common
- C．typical
- D．special
-
(75)
- A．exam
- B．test
- C．reference
- D．specialize
-
(76)
- A．process
- B．procedure
- C．model
- D．project
-
(73)
- A．give
- B．above
- C．presented
- D．got
-
(74)
- A．of
- B．in
- C．to
- D．with
-
(72)
- A．Existing
- B．the
- C．fact
- D．Company
-
(71)
- A．lack
- B．since
- C．big
- D．lot
-
Due to a constantly(66) environment, a poor understanding of the user's needs and preferences, as well as a(67) of willingness to modify.(68) organizational structures and decision models, the full economic potential of Web Information Systems (WIS) has not been realized by now. The data object types of the(69) meta. model, the Extended World Wide Web Design Technique (eW3DT), provide hypertext designers(70) a conceptual, user-centric framework and graphical notation for the construction of both,(71) and customized models, during the software development(72) of commercial WIS. A reference model as a normative concept represents an abstraction of a(73) company, its functional units, or its Web Information System and is intended to streamline the design and implementation of complex applications at(74) costs. As precondition for pursuing a partial globalization strategy,eW3DT(75) between technical and content-specific responsibilities for designing, implementing, and maintaining WIS.
- A．modify
- B．changing
- C．modifying
- D．changed
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