OCP运输是指（）
A.桌到桌快递服务
B.集装箱运输
C.美国陆桥运输
D.国际多式联运
参考答案：C
软件生命周期中解决“软件系统必须做什么”是 (51) 阶段的任务。
A．可行性研究
B．详细设计
C．需求分析
D．概要设计
Which one of the following activities is included in the acquisition activities in the Natural Approach
A. Affective-humanistic activities. B. Communicative activities.C. Skill-getting activities. D. Social activities.
