原型法相比传统瀑布模型更难于获取软件的需求。
参考答案:错
— I promise to go shopping with you if you help me with the housework.
— _____.You are the last person to keep a promise. [ ]
A. That's great
B. Come off it
C. I don't agree
D. I don't believe so
人文社会科学的发展,对人类的科学研究作出了哪些特殊贡献?