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男性患者，75岁，主因排尿困难5年，腰背痛2个月来诊。查前列腺左叶有直径1cm质硬结节，PSA>100ng/ml，

为明确诊断应采取何种措施（）

A.B超

B.全身骨扫描

C.直肠指诊

D.经直肠前列腺穿刺活检

E.磁共振检查

答案

参考答案：D

单项选择题

食道癌患者，吞咽困难3个月，无法进食，可能是（）.

A．等渗性脱水 

B．高渗性脱水 

C．水过多 

D．低钾血症 

E．低镁血症
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单项选择题

Developing reliable software on time and within (106) represents a difficult endeavor for many organizations.
Usually business solutions have three main aspects: people, (107) , and technology. The main reason for failing software projects has little to do with .technology and tools, and much to do with lack of process (108) . Experience has shown that introducing new technology and tools in an immature or undisciplined environment is likely to increase the chaos. CASE tools are not enough. "A fool with a tool is still a fool!"
Structured method was the first wave of the software industry. This was the beginning of transforming software development from a" (109) industry to mass production. Software process movement if the second wave in the software industry. The process maturity movement prepares the way for the third wave of the software industry: "software industrialization". Software development will become like an assembly and manufacturing process. A critical enabling factor is a disciplined software engineering process with predictable quality, (110) and functionality.

A．law

B．discipline

C．plan

D．evaluation
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