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问题 单项选择题

患者，女性，45岁，有慢性尿路感染反复发作10年，现血尿素氮9mmol/L，血肌酐186μmol/L，尿中红细胞5～10/HP。其肾功能属于

A．肾功能正常期
B．肾功能代偿期
C．肾功能失代偿期
D．肾衰竭期
E．肾衰竭加重期

答案

参考答案：C

选择题

某小孩生长发育不良，味觉发生障碍，他体内可能缺乏的元素是[ ]

A．碘

B．锌

C．铁

D．钙
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单项选择题

All of the following are examples of a source of scope change EXCEPT ______ .

A) a variation in government regulations
B) failure to include a required feature in the design of a telecommunication system
C) discovering a need to engage in bottom-up cost estimating
D) introducing technology that was not available when scope was originally defined
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