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问题 多项选择题

1918～1928年的资本主义国家德国的状况（）。

A.德国十一月革命的爆发

B.柏林一月起义

C.巴伐利亚苏维埃共和国

D.魏玛宪法和魏玛共和国的建立

答案

参考答案：A, B, C, D

单项选择题

甲、乙两车从A、B两地同时出发，相向而行。如果甲车提前一段时间出发，那么两车将提前30分相遇。已知甲车速度是60千米/时，乙车速度是40千米/时。那么，甲车提前了( )分出发。

A．30

B．40

C．50

D．60
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单项选择题 共用题干题

The traditional model for systems development was that an IT department used (1) which is a process-centered technique, and consulted users only when their input or approval was needed. Compared with traditional methods, many companies find that JAD allows key users to participate effectively in the (2). When properly used, JAD can result in a more accurate statement of system requirements, a better understanding of common goals, and a per commitment to the success of the new system. RAD is a team-based techruque that speeds up information systems development and produces a functioning information system. While the end product of JAD is a(an) (3), the end product of RAD is the (4). The RAD model consists of four phases. During the (5), users interact with systems analysts and develop models and prototypes that represent all system processes, outputs, and inputs.

空白（1）处应选择（）

A.structured analysis

B.object-oriented analysis

C.prototype analysis

D.process analysis
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