软件工程开发的可行性研究是决定软件项目是否继续开发的关键,而可行性研究的结论主要相关于( )。
A.软件系统目标
B.软件的性能
C.软件的功能
D.软件的机构属性
参考答案:A
一Hello.Is Mr.Fred available now?
一 .
A.I am Mr.Fred.
B.Speaking.
C.Who are you?
D.Who are you looking for?
根据要求改写句子。
1. This is a toothbrush. (变成复数句)
2. Are your hands clean or dirty? (用these dishes提问)
3. I would like some juice. (对画线部分提问)
4. Did you have a good trip? (作肯定回答)
5. What is she doing? (用do homework回答)