题目

在信息系统的生命周期中,在系统分析和系统实施中间的阶段是( )。 A . 详细设计 B . 系统设计 C . 需求分析 D . 编程调试 答案:B ________ is known that Tom wants to visit ________ they call “the paradise(天堂)”some day if he can afford it. [  ] A.As; that B.It; what C.It; that D.As; which
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