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问题 填空题 案例分析题

如图是利用奶牛乳汁生产人类血清白蛋白的图解，据图回答：

④到⑤过程中称为（）⑤的数量能不能太多，为什么？（）

答案

参考答案：胚胎分割；不能，否则会影响分割后胚胎的恢复和进一步发育

单项选择题

(71) analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems. Ultimately, the system models become the (72) for designing and constructing an improved system. (73) is such a technique. The emphasis in this technique is process-centered. Systems analysts draw a series of process models called (74) . (75) is another such technique that integrates data and process concerns into constructs called objects.

（73）是（）

A. Structured analysis

B. Information Engineering

C. Discovery Prototyping

D. Object-Oriented analysis
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单项选择题

哪一年的石油天然气工业总产值是最少（）

A．2001

B．2002

C．2003

D．不清楚
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