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问题 单项选择题

关于小儿尿液特点的描述，错误的是（）

A.小儿尿液接近中性或弱酸性，pH值多在5～7之间

B.透压1岁左右接近成人水平

C.正常小儿每日尿蛋白定量≤100mg/m2

D.正常小儿离心尿沉渣镜检红细胞<3个/HP

E.正常小儿12小时Addis计数红细胞<100万个

答案

参考答案：E

单项选择题

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

（）is such a technique.

A．Structured analysis

B．Information Engineering

C．Discovery Prototyping

D．Object-Oriented analysis
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填空题

仓库有a吨化肥，每天运走b吨，4天后还剩下______吨．
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