软件维护是指( )。
A．维护软件的正常运行
B．软件的配置更新
C．对软件的改进、适应和完善
D．软件开发期的一个阶段
参考答案：C
解析： 软件维护是指对软件的改进、适应和完善。 相关知识点： 影响系统可维护性的因素主要有可理解性、可测试性、可修改性3个。 软件维护按照每次进行维护的具体目标可分为4类。 完善性维护：不断改善和加强产品的功能与性能，完善性维护约占50%～60%。 适应性维护：是指软件适应运行环境的改变而进行的一类维护，约占25%。 纠错性维护：纠正在开发期间未能发现的遗留错误，约占20%。 预防性维护；改善软件的可维护性，减少今后的维护工作量，约占4%。
Directions: Read the following text and choose the most suitable heading from A-F for each paragraph. There is one extra heading which you do not need.
Learning to read early has become one of those indicators — in parents' minds at least – that their child is smart. In fact, reading early has very little to do with whether a child is successful academically. Research has shown that difficulty with reading is often due not to inferior intelligence but to differences in the developmental wiring of each individual child. In some cases, there are neurological problems and developmental lags that can be overcome with proper training. 小题2:______________ Traditionally, American schools teach children at age six, but many schools begin teaching informally in kindergarten and pre-kindergarten. If parents start too early to encourage reading, and a child does not immediately succeed, the parent has a hard time relaxing and letting the child go at his or her own pace. 小题3:___________ Over the years, research has proved that the use of both the “whole language" method and the "phonic" method works best for a child to master reading. While the whole language approach, which includes reading to children and getting them interested in both the activity of reading and the story they are reading, is helpful, phonics must be taught. Children must be taught that one of the squiggles they see is a "p" and another a "b". Getting the print off the page requires a different ability than being able to understand the meaning of what is written. 小题4:_______________ You can start developing the skills needed in reading at a very young age without putting any pressure on children. Besides reading to them, parents can start "ear training" their child by playing thyme games. This develops the child's ability to recognize different sounds. In reading to children, parents also can point to words as they go, teaching the child that the funny lines on the page are the words you are saying. All this should be a fun activity. 小题5:_____________ Once a child is in school, the learning of reading is inevitably more serious. For children who have some kind of reading difficulty, you must get a professional diagnosis. While the teacher might say the child is merely disinterested but will get over it, disinterest or poor performance in reading can stem from a number of things, some being very specific learning disabilities that can be identified and worked on. But it is very tricky for parents to deal with their own child's learning disabilities. |