说明骨质在长骨内的配布。
参考答案:
长骨的骨干主要由密质构成,其中以中部为最厚,向两端逐渐变薄,到关节面则成很薄的一层。松质的配布正相反,骨两端很发达,而骨干部逐渐变薄。
对下面文段中加点词的解释有错误的一项是(3分)
臣本布衣,躬耕于南阳,苟全性命于乱世,不求闻达于诸侯。先帝不以臣卑鄙,猥自枉屈,三顾臣于草庐之中,咨臣以当世之事,由是感激,遂许先帝以驱驰。后值倾覆,受任于败军之际,奉命于危难之间,尔来二十有一年矣!
A.躬耕于南阳躬:亲自。
B.先帝不以臣卑鄙卑鄙:人格低下,举止不端。
C.遂许先帝以驱驰驱驰:奔走效劳。
D.后值倾覆值:遇到,逢着。
Developing reliable software on time and within (1) represents a difficult endeavor for many organizations. Usually business solutions have three main aspects:people, (2) , 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 (3) . 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 " (4) 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, (5) and functionality.
A. law B. discipline C. plan D. evaluation