Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now listen to the passage. Where was Johnson born
A. New York.
B. France.
C. India.
D. England.
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BSP认为,一个信息系统必须支持企业的______目标。
Because Web servers are platform and application (71) they can send or request data from legacy or external applications including databases. All replies, once converted into (72) mark-up language, can then be transmitted to a (73) . Used in this way, Intranets can (74) lower desktop support costs, easy links with legacy applications and databases and, (75) all, ease of use.
A. above
B. around
C. about
D. abort
在大多数企业中,都存在对该企业经营起重要作用的因素,一般称为企业经营的______。
在关系模型的完整性约束中,实体完整性规则是指关系中 (2) 参照完整性规则要求 (3) 。 (3)处填()。