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问题 单项选择题

关于敷设子管，下列做法不正确的是（）。

A.敷设三孔子管时，三根子管的颜色必须为红、蓝、白

B.子管不得跨井敷设

C.子管在管道内不得有接头

D.子管管孔应按设计要求封堵

答案

参考答案：A

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．process

B．skill

C．organization

D．interface
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单项选择题

某患者，右下后牙缺失，可摘局部义齿初戴后2天，咀嚼时右下第一前磨牙舌侧黏膜压痛，应考虑的原因不包括

A．硬区缓冲不够

B．义齿不稳定

C．咬合压力过大

D．咬合压力过于集中

E．基托边缘过短
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